Database Develop

Diamond: some production series better than others?

I just got my Diamond back from repairs and wanted to compare experiences:
1)
I first bought a Diamond two months ago. It came with 1.37 ROM series on it, the screen wasn't too yellowish, but touch function wasn't responsive and the GPS was a MESS!
(of course, I tried many ROMs official and unofficial, almost every Radio ROM and various Hard-SPL. None of that fixed the problems.)
I could cope with with the other flaws, but I just couldn't bear my GPS wasn't getting a fix, no matter how much sattelits were in view...
It worked at first, but soon started to display '66666' instead of the location and finally, it would never display any location again.
I tried every tips and tricks and softs, it helped giving me more and more satellits in view and apparently active, but at the end my crappy GPS could never turn the datas received into a proper location...
2)
I sent my device back to warranty (after flashing back to official ROM and SPL) and had to wait for about a month.
(the technician at first tought I was just a noob unable to set his phone properly, but after two days of attempts, he had to admit that there was something wrong with my phone and sent it to the the headquarter for replacement of motherboard and so on.
3)
The new phone I got came directly with 1.93 ROM and a little bit more yellowish screen, though, there is no spot or stain on it. So the coulour doesnt bother me.
But from the beginning I noticed the new phone was much more responsive even at the slightest touch.
From the first try, the GPS got a fix in about 1 mn time, with only 3-4 satelits in view.
I installed Hard-SPL and the latest Australian Official ROM, and though the screen seems now a little less responsive than before, the GPS is still working, fine.
I'm a VERY happy user of Diamond now, but I'm still wondering one thing:
it looks like once the warranty technicians understood that I was very demanding about quality and complete functions, they took time but gave me a phone totally different in terms of behaviour and quality of the components sensitivity of screen, GPS etc.
Is there some bad production series that they never tells publicly about, and much more better series that they give you as a replacement once they understand you will bother them until the end of time if you are not satsified?
Plz tell your experience about having received two new diamonds with totally different behaviour and quality of the components.

I guess you are totally right!!!
My first device was pealing paint in the aluminium frame on the second day, work very good by the way.
Now i´m on the second device and i my hardware keys, especially the call button is sometimes irresponsive and i have to push it several times to enter the dial.
Tried cooked rooms as well, and the call button issue still remains, so i´m a little unhappy with my diamond experience.

I've noticed that whenever i turn on my display after having left the diamond unused for sometime the lcd doesn't switch on smoothly, what i mean is that it first displays a grey pattern(only for a ms or so) and then the desktop( lcd off>>grey flash>>desktop). Usually the transition from off to desktop is quite smooth, but in my case its not!
Is this a s/w issue or h/w ?

I've never experienced that particular problem myself, but sounds like H/W problem to me...

just been through a couple of other threads related to the grey screen of death...i've had it once...it happened while i ended a call, had to soft reset to resolve it.
take a look at the grey screen of death i'm talking about

Pretty scary indeed!
It might not be a coincidence that you experienced both: grey transition when switching on the screen and once, the grey screen of death after a call...
Two different effects of the same defective part in your H/W?

a solution!, almost
untill now i've had auto brightness control switched off and the brightness was set to minimum to save battery life, but now i just tried switching on auto adjust backlight and the problem seems to have vanished.....coming out of standby is smooth as ever!
although i've to say that i don't quite understand the logic behind it.
*EDIT*
it doesn't help for long

blufade said:
a solution!, almost
*EDIT*
it doesn't help for long
Click to expand...
Click to collapse
This is what I was worrying about...
Your method sounded like a work around to avoid the display failure. But as a matter of fact, there must be a reason for the display to fail. (bad screen, power supply or something...)
By the way, I'm more and more convinced about my assumption that there are bad production series and better ones:
Today I had my device connected to my PC through USB for a couple of hours. In the meantime, I was downloading and deleting messages, watching google video on opera, after that I used wifi etc.
In this situation, my first Diamond would have got hot like hell and my hand could barely stand the pain...
Since many people were complaining about over-heat problems, I thought that was a common problem with Diamond.
But the new one did not get that hot. Just a little over-warmed, but definitely not too hot. From that phenomenon, I can see what I felt about a better touch-flow behaviour, a better GPS and so on is a part of a whole:
I was first sold a ****ty phone, and now I finally got a proper Diamond!
People with bad series, you don't have to cope with all those troubles, ask for a replacement phone!

my diamond gets heated up quite a bit at times....but i dont fully uderstand what exactly is the cause.....i've had experiences with the diamond getting pretty hot while using wifi & or gps and on another occasion i was watching a DVDRIP via wifi(@ full power) using core player and also with gps cycle running in the backgroud, still the diamond stayed well within reasonable limits.
i think it has to be a software problem, possibly the radio s/w
would you mind sharing the radio version of your diamond?

As written in my signature, I'm using the 1.00.25 which is included in all latest official ROMs.
By the way, I hope you did not cast a spell on me! (just kidding)
Today I experienced my first grey screen!!!
My Diamond was connected to the PC through USB cable, downloading e-mails, and I got a phone call. When I hung the phone, It suddainly happened, for the first time in my Diamond user carreer!
Just for one second, looking like an old black and white TV screen trying to tune on channels.
Hope that was the first and last time. In ordinary calls, (without being synchronized to the PC at the same time, it never happened so far...

sorry to hear that my friend
My Diamond was connected to the PC through USB cable, downloading e-mails, and I got a phone call. When I hung the phone, It suddainly happened, for the first time in my Diamond user carreer!
Click to expand...
Click to collapse
I'd the same experience except for the fact that my diamond wasn't connected to a PC.
I hard reseted my diamond yesterday, but the grey splash while i turn on the display from standby(post 3) still exists ( ......i don't suppose its a software problem anymore.

blufade said:
i don't suppose its a software problem anymore.
Click to expand...
Click to collapse
Why not trying to send it back to the seller and get a new one?
This problem is easy to demonstrate to the technicians, and I don't think they will be cheeky enough to say that's a normal phenomenon!

This problem is easy to demonstrate to the technicians, and I don't think they will be cheeky enough to say that's a normal phenomenon!
Click to expand...
Click to collapse
not that easy.....the thing is that if we turn on & off the lcd without a gap of atleast 4-5 min(dono exactly) i dont see that grey splash
i think im going to wait another 3-4 months before i approach for warranty.

I had that "gray splash" problem with my Kaiser and Diamond.
Hard reset also didn't work like above. For both devices the fix was simply flashing to a different (cooked) ROM.

As mentioned in another thread, the grey screen problem was fixed (as least for me when I flashed to dutty's rom)

blufade said:
not that easy.....the thing is that if we turn on & off the lcd without a gap of atleast 4-5 min(dono exactly) i dont see that grey splash
i think im going to wait another 3-4 months before i approach for warranty.
Click to expand...
Click to collapse
You can stay there and wait for 5 more minutes in the shop while they are attending other customers, just to proove your point.
If they are honest, they will not deny the fact!
foxium said:
I had that "gray splash" problem with my Kaiser and Diamond.
Hard reset also didn't work like above. For both devices the fix was simply flashing to a different (cooked) ROM.
Click to expand...
Click to collapse
knave said:
As mentioned in another thread, the grey screen problem was fixed (as least for me when I flashed to dutty's rom)
Click to expand...
Click to collapse
There might be some tweaks in the cooked ROMs that avoid the problem, or it might be due to some bad flashing or defective hardware.
If not, how do you explain that I've never experienced this with my previous HTC phones (wizard, Trinity...) nor I experienced it with my Diamonds (the first one and the new one) with stock or cooked ROMs.
except for that very special time, when I received a call while downloading messages through Active Sync.

Tilt no longer enjoys being touched.

So, i'm usually quiet on these forums. Just reading, trying roms, etc. But here is something that has me stumped. Last thursday my phone crapped out. When i woke up and looked at it (it was connected to my laptop/charging) Applications were opening left and right, i couldn't close any of them because stuff kept opening. I tried to soft reboot it and it didn't help. Once it rebooted stuff started opening itself at random again. I ended up pulling the SIM and battery out and leaving it for 5 minutes. When i put it back and powered it up the touch screen no longer worked, but apps weren't opening on their own.
What gives?
I have hard reset (which means it's waiting for me to touch the screen to setup my rom), i have also taken off the screen protector (in case it had something stuck under it. Neither of these things helped. Per the forums I got a new screen, just put it in, and the touch screen doesn't work still... I'm drawing a blank here can anyone give me some advice. Going back to my Prophet for the time being but I HATE not having a keyboard (and it's slower than molasses)

have you tried flashing a new rom via sd?

Check that the screen protector has not moved under the front bezel and keeps pressing your touchscreen.
Robert

I have totally removed the screen protector and even replaced the screen for that matter so I dont think that's it. I haven't tried flashing a new rom. I just found it odd that this has worked for so long and now I get what appears to be hardware problems. As for flashing Via SD memory, is that better than doing it via cable for some reason? I'd be willing to give it a go...

Any other suggestions?

fiddelm3742 said:
I have totally removed the screen protector and even replaced the screen for that matter so I dont think that's it. I haven't tried flashing a new rom. I just found it odd that this has worked for so long and now I get what appears to be hardware problems. As for flashing Via SD memory, is that better than doing it via cable for some reason? I'd be willing to give it a go...
Click to expand...
Click to collapse
Similar problem happened to my Kaiser phone, although no multiple files opened, the phone just won't react to any touching, not stylus pen either. So I first soft reset, then hard reset, none of them works, now the phone can Sync alright, but the screen just stands on the Window Mobile screen, saying "Tap the screen to set up your window mobile device"
I only have this new phone for <3 weeks.
I went to HTC site, want to download a latest ROM file from them, after typing in the S/N, it won't let me, saying that ROM is not suitable for my phone.
So now I am download ROM file from this site, will choose one to flash the phone, see whether it works.
I will call HTC tech support tomorrow after Thanksgiving, see what they suggest
Hope some gurus here can also make some suggestion, Thanks!

Well I replaced the LCD and the new LCD works great, but the screen still doesn't respond to touches. What gives?! I hard reset and I got past the windows screen alignment thing by creating a welcome.not file but it's still pretty much worthless w/o a touch screen. Anyone have any suggestions?

Whoa, i thought something odd was going on. Never mind i got entirely the wrong idea.

Ha, not the case.
Anyone know if a flex cable would fix my issue? I dont really know what the felx cable is for but i've seen posts about people replacing them w/ LCD problems. I don't know if it is touch screen related or not, and i'm kind of tired of buying parts that don't fix my problem

please just flash a new rom whch ever you want (for some reason i thought you said that it keeps restarting your device because if that was the case the only option you would have was to flash via sd as activesync would load long enough for you to get a connection to flash from the computer)..trust me just try it..what have you got to lose

I reflashed one yesterday actually. The newest HyperDragon (which is looks like a new one is available today) It wasn't rebooting but initially windows were popping open left and right so i restarted it a couple of times(which i first had the problem, not yesterday) Yesterday it worked like any normal rom w/o the ability to touch. Anywho, after the flash of a different rom. No luck. I'm thinking it's a hardware problem of some sort but as i've already replaced the LCD i have no idea what?

yah thats sounds funky..you can bring it in for a warranty exchange either at a local DSC or over the phone (that is if your with att) and if not call HTC..all devcies come with a 16 or 18 month warranty

Well I called ATT yesterday, apparently I purchased the phone On Oct 17th 2007 which means It's out of warranty (apparently it has a 12 month warranty?) So it sounds like I'm SOL. So, i guess I'm off to ebay to try and fine a phone that I can canibalize to try and get mine going again.

touch screen
this may sound dum but when you replaced the screen did you replace the touch part as this is different from the screen

Well I picked up this
http://www.blackberry8100parts.com/...B3-NEW-HTC-TyTN-II-KAISER-P4550-_p_35-70.html
which includes the digitizer (from what I know it's all one part when they send it to you) The screen has the digitizer built in. So i replaced the part they sent me.

I just stated having this issue. My touchscreen stopped responding to touches over the weekend while the keyboard was extended. I just took the phone apart to make sure everything was connected right & put it back together, & now the touchscreen doesn't work at all. This sucks!

Any news? i'm having the same problem: no response at all, stuck at "Tap the screen to set up Windows Mobile-based device"

An interesting problem with screen
well my tilt fell out of the car holster while using gps and i suspect the screen hit my gear shift. I didn't notice anything odd after i put the battery back in it (yeah it fell that hard lol). Later that night I went to check mail and noticed something not right. Turns out my screen seems to have been pushed in a bit. Well here's the issues I've noticed so far: All the touch responses seem fine except for 1) the screen alignment doesn't register taps, but otherwise the touchscreen works and 2) on the htc home screen, I can't tap the house icon unless I tap any other icon first.
Initially I thought there was some pressure or deformation right at that particular spot, but it reacts the exact same way in landscape mode. I can't tap the house icon first; I have to tap something else first, then the icon works fine until I open a program or something and go back to the home screen. Then I simply have to tap weather or something and then home.
I'd reflash the rom or do a hard reset, but the screen alignment didn't work when I tried it so I didn't want to get stuck at the "tap your screen to begin" part.
Any ideas or do I just need to buy another screen or maybe just the digitizer. the amount the screen seems recessed is maybe a millimeter at most. Just enough so that I noticed a difference when touching contacts just above the housing. I tried cleaning by using a business card and running between screen and housing. Ohh... and one more thing... when I open the cube and then close it, I get what I refer to a static frazzle for split second and it goes back to normal. That only happened a couple of times after the business card thing. Do you think I just loosened a connection? damn... I still haven't taken it apart yet. Think I need to. Any help appreciated.

If your screen does not work, you can still use your phone. There is an app that you use on your computer that acts as the touch screen. This also works when the screen craps out.
http://www.sparus-software.com/spip.php?page=download&lang=en&ref=at&t=tilt
(EveryWAN Remote Support Personal Edition - Free download)

yeah -- my touchscreen didn't crap out totally, it just got muffed up when I dropped it a bit. Well, i went ahead and installed codefreaks remote screen alignment thing and did a hard reset. Well, the hardreset did the trick w/out the need for anything else. The alignment worked and everything. So, i'm back in business. Everything seems to work properly, except that my screen is still recessed a tad; but, that's not a big deal really.

Screen-> Fade to White-> Temporarily

From what I've been able to find from searching, I think my Tilt is about to bite the dust, but thougth I'd post the symptoms and see if anyone has any good info.
My screen has been occasionally fading to white. Not sure how else to describe it. It just sort of starts getting white, and within 2-3 seconds will be completely white. It is still working, that is, I can place a call (using MS Voice Command); I can play music.
I have SPB Mobile Shell on it, and a button assigned to go to the home screen. I can press that, and it will go to the home screen and display normally. If it is a hardware problem, I find it interesting that I can go back to the main screen. I suspect it is close to gone.
Any thoughts?
If so, anyone know what it costs to repair, and where to do that?

Sounds like a software thing to me, I hate to say it but try a hard reset. Do you have a 6.5 rom?

I've been thinking of doing a hard reset anyway, My memory is about used up. I'm not quite sure why. Probably should get it cleaned up.
No, I'm not on 6.5. I've been reluctant to make the move. I did some rom updates some time ago, and then the person working it decided to stop. I decided to stay with MFGR based roms after that.

ewingr said:
I've been thinking of doing a hard reset anyway, My memory is about used up. I'm not quite sure why. Probably should get it cleaned up.
No, I'm not on 6.5. I've been reluctant to make the move. I did some rom updates some time ago, and then the person working it decided to stop. I decided to stay with MFGR based roms after that.
Click to expand...
Click to collapse
Good thinking.

Likely NOT software but hardware -- could be the screen is going bad, or perhaps just the ribbon cable than connects the screen is broken or not seated properly.

burtcom said:
Likely NOT software but hardware -- could be the screen is going bad, or perhaps just the ribbon cable than connects the screen is broken or not seated properly.
Click to expand...
Click to collapse
So the hardware problem is just scared of the button he has assigned?
I have SPB Mobile Shell on it, and a button assigned to go to the home screen. I can press that, and it will go to the home screen and display normally.
Click to expand...
Click to collapse
Try putting the phone in the bootloader screen and let it sit there, that should let it go around the software.

Erm, yeah -- I guess that wouldn't be indicative of a hardware problem

Well, I am doing the hard reset. So far, no white.
Hmmm...lordy...I have a lot of stuff I try to put on this phone.
I wonder how much memory, both types, I need to keep available.

Don't put anything on the phone that you REALLY REALLY don't need. This is a taste phase and you need the least amount of BS on there.

Well, I've got most of what I need loaded, and have 61MB storage, and 63MB of Program memory free. Much better than before.
But I am still getting the fade to white occasionally.
I'm thinking hardware.
Anyone know if checking the 'ribbon' cable is user capable thing? I don't see it easily. I'll so some searching in the meantime.
Also, any feedback on cost and where for a new screen? Or do I just trash it when it finally goes?
[EDIT]
I am noticing that it particularly does it when I click the Windows (lower left) hard button on the front. I'm thinking it is related to a problem with that button.

Could be when you press that button you are flexing the cable enough to make it lose connection and go white -- this could be good news -- there are instructions scattered in this forum on how to take the phone apart. I'd recommend doing that and makeing sure the cable is firmly seated -- you should also inspect it for cracks.
Hopefully it's just a loose cable and making sure its in all the way will fix it -- if not you'll have to track down a new one.

Thanks. I'll do some searching for those instructions.
In the meantime, I called HTC just to get their thoughts on repair. First thing they told me was to upgrade the rom to the latest which is 3.57.502.2 .
I haven't been following ROM discussions. I need to check that out too. I wish I had seen or thought of that before I just spent a day with the hard reset/reinstall

did this get resolved?
I have the same issue. was it the ribbon cable?
update. I loaded a stock rom, and this appears to have solved the fade to white

Sorry...beeen away a bit.
I have not resolved the issue. It is intermittent, and hasn't happened for a few days now.
I searched and have found some instructions about taking the screen apart, but have not tackled that yet.
In my case I can't imagine changing roms making any difference, as I've had this rom for many months and it is just recently starting this.
I have found new LCD screens for this for ~ $30. I'm wondering if replacing the screen may be an ultimate solution or, if it is possible/likely that it is somethign else hardware related.
Been busy, and don't have the tools yet, so it may be a bit (or when it goes permanenly white forcing action) before I get any further on this.

It is definitely a hardware issue, my wife's tilt did the same thing, then it went permanent white. I first took it all apart looking for a bad ribbon cable or connection because it had taken a few good falls. But that was not it. So I bought a screen for about 30.00 online and shazam that was it!

Thanks for that info. I was thinking of ordering the screen, but concerned it could be something other than the screen (even though logically it would make sense that it is the screen.)

Touch Screen has stopped working

Basically about 2 months ago I rooted the phone and put in cyangen mod, everything was fine until the touch screen stopped working. Most of the time it was brief but sometimes the touch screen just wouldn't work for a whole day and then start working again. Thinking I had done the root wrong I unrooted the phone back to it's orginal. However the problem still showed up despite that. I recently updated it to the donut update, and that's when the problem got worse. Now the touch screen won't work and when I go to the contacts using the trackball I get an error. And anytime i recieve a phone call I get the same error. Thinking it was a software problem and factory reset the phone and scaled it back to rc29. But still the touch screen doesn't work, and now because of that I am stuck on the setup screen at the beginning which ask you to touch the android to continue (which I can't). I have wiped and factory reset the g1 many times, and usually that has made the touch screen work again, but now it seems to not work at all. I deducted over the last couple of days that it must be the power adapter causing all of this. Since I got the touch screen working yesterday and had no problems the entire day. Then a hour after I put it on the charger the touch screen stopped working again and hasn't worked since. Is there anything that can be done at this point to fix it? I read somewhere about a script that makes the g1 touch screen work again but haven't been able to find it.

Same problem
I'm having a near identical problem. Most all of the symptoms are the same - except my touchscreen has only worked for a few seconds on one occasion after the initial failure. I've tried wiping, and about 3 different mods (JaCx, Cyan, Enomther). None have helped, and currently I'm stuck at the same point where it's asking me to touch the Android to begin, and I can't. The only difference is that I didn't unroot. So I'm going to try a few more roms, but I doubt I'll have any luck. My phone was also put on a charger that wasn't made for the g1. I began to notice the problem thereafter. Not sure why, but that certainly seems like the only reasonable variable which could be causing this.
Anyone out there have any ideas? It'd be much appreciated.

Have you guys dropped your phone recently? I'd like to share my story as well. Two weeks ago, I dropped the phone on hard tile while it was still in its leather/suade case. I picked it up and instantly found the touch capabilities were gone (with screen open or closed). After many soft resets and not knowing how else to fix it, I also decided to revert back to rc29 from cyanogenmod. Still no go, after being stuck at the setup screen. I disassembled the phone, using the G1 service manual, to make sure none of the ribbons were knocked loose and examined the lcd and digitizer for any cracks. No problems that I could see. Disassembled, and reassembled the phone a few more times and still with no avail.
If you were one of the first to receive a g1, such as myself, oct 22nd is the last day of your 1 yr warranty. So give t-mobile a call, and submit a claim before then if you want to take advantage of it. Make sure you reflash to stock image, and that there are no signs of visible damage on the phone or else the warranty will be void. Good luck.
Edit: If your phone's touch screen is working at random times, I'm suspecting its a hardware problem, most likely a damaged or worn out flex cable from opening and closing the screen. Try slowly opening the screen and touching the screen at the same time to see if anything happens.

When I was waiting for my G1 I came on this forum (Had a Diamond before so knew about it anyway) and found a topic discussing problems like this... If you have an Early G1 then I'm guessing this is the problem...
There is some sort of design flaw with the ribbon cable connecting the Touch Screen to the Mainboard catching onto the sliding mechanism. This eventually destroys the cable and causes the touchscreen to stop working. On Later models they've fixed it by taping the ribbon cable down instead of letting it hang loose.
In short... you need to unroot your phone and take it back to T-Mobile.

Interesting thoughts, thanks for the input. My G1 has never been dropped, and is actually relatively new, only a couple months old. But it's not on T-Mobile. I flashed MLIGN 2.5.7 (Hero). I did this b/c I know it bypasses the typical "touch here" activation BS. So I can boot, and get into the OS just fine. Which is where I'm at now.
Here's what I've done. I completely wiped my Fat32, Ext2, and Linux_Swamp partitions using Gparted. I completely wiped the phone using Cyan 1.4 Recovery. Yet no matter which Mod I use my touch screen doesn't cooperate, AND (no matter which mod I'm using) when I try to launch basic apps (dialer/phone, some settings menus, etc) I am notified that, "android.process.acore" has stopped. Without fail. It ALWAYS does this when attempting to access the dialer/phone. I would be more than happy to take some time troubleshooting the touch screen IF my damn dailer/phone would work. But it does not.
I read on some other forums about there being 2 compcache files for someone who had a similar issue. That's slightly above my head, though, and I'm not quite sure how to go about checking that and/or deleting one. Really, I just want to be able to access my dialer/phone app for the time being. Then I can take some time to trouble shoot the touch screen.
Anyone have any ideas about the process failing, or the compcache affect?
Also, I'm using 1.33.2005 SPL.
Thanks

gat0rjay said:
Interesting thoughts, thanks for the input. My G1 has never been dropped, and is actually relatively new, only a couple months old. But it's not on T-Mobile. I flashed MLIGN 2.5.7 (Hero). I did this b/c I know it bypasses the typical "touch here" activation BS. So I can boot, and get into the OS just fine. Which is where I'm at now.
Here's what I've done. I completely wiped my Fat32, Ext2, and Linux_Swamp partitions using Gparted. I completely wiped the phone using Cyan 1.4 Recovery. Yet no matter which Mod I use my touch screen doesn't cooperate, AND (no matter which mod I'm using) when I try to launch basic apps (dialer/phone, some settings menus, etc) I am notified that, "android.process.acore" has stopped. Without fail. It ALWAYS does this when attempting to access the dialer/phone. I would be more than happy to take some time troubleshooting the touch screen IF my damn dailer/phone would work. But it does not.
I read on some other forums about there being 2 compcache files for someone who had a similar issue. That's slightly above my head, though, and I'm not quite sure how to go about checking that and/or deleting one. Really, I just want to be able to access my dialer/phone app for the time being. Then I can take some time to trouble shoot the touch screen.
Anyone have any ideas about the process failing, or the compcache affect?
Also, I'm using 1.33.2005 SPL.
Thanks
Click to expand...
Click to collapse
I realize this is an old thread but did you ever get the issue figured out? My phone did this just last night

Alright as suggested earlier in the thread it was a hardware issue. I found that my touchscreen had become unplugged and was causing the errors.

Sorry to bring this guy back from the dead but I figured I would educate a few people one a common touch-screen problem.
Yeah, 90% of the time it's the adapter you're using. Being a G1 owner with lots of mini-USB chargers i found the same problem. Also being a tech rep at t-mobile, i've had lots of calls revolving around this and fixing it.
The G1 uses a 1000mA charger (1A). For me, the touch-screen going haywire/unresponsive seemed to get more severe as the the chargers specs went lower. An old Motorola charger at 500mA was ridiculous. Talking to customers with the exact symptoms and hardware, eventually lost all functionality of the touch screen.
On a side note, it's not just the G1 that has problems with the wrong charger. A linksys router I have has a standard power port connection type in the back but requires a bigger amp adapter. hooking the wrong one up will cause complete failure. In many situations, not enough energy is just as detrimental as too much energy. One last example: Take a big 10" sub driver, hook it up to a crappy 300W amp, you get an overheated coil and eventually a busted driver.
So, lesson is, just because it fits doesn't mean it's safe to use. I never mix and match adapters with any device ever because of the risk of damage.

HELP!! my screen works....but it doesnt....

ok guys and gals, heres one for you. i know im a noob but this one has got me stumped and i cant for the life of me find anything in this or any forum or even google. i have the tilt. just flashed a cooked rom for the first time several weeks ago thanks to everyone on here and all the FAQs and stickies. (to any other noob, all the info is out there!!!!! dont be lazy!!! SEARCH AND READ YOUR HEART OUT!!!!) anyway, im running Witscheys latest 6.5 rom build 23071 HSPL 3.34 w/ radio 1.70.19.09. ive been tweakin it pretty much every day tryin to get it to the way i want.
well im so close to finishing and the the screen suddenly decided to randomly not respond to my touch. the buttons were the only way to control the phone. even after numerous soft resets. then it would decide to start responding. so i was doing some research and tried a couple diff methods of fixing "screen freezes" (but i dont think its a "screen freeze" as it worked fine with the use of the buttons) finally found a post in the thread for the room that read:
Originally Posted by cpala
Hi witschey,
I work with you rom a week a go, but sometimes the device screen freeze.
ugoff
Member
I had that same problem. Need to change the cache settings in Advanced Config. The filesystem cache defaults to 512kb, so I set it to auto and it doesn't freeze anymore. I also turned up the glyph cache to 32kb. Between the two, the phone interface runs fast and smooth.
so i tried that and it still didnt fix it. then i decided to just do a hard reset and install one app a day at a time (all the ones i had before the hard reset) to see if one of them was casing it. well after the hard reset i didnt notice the problem anymore. i was stoked. now all i needed to do was figure out which app was giving me trouble. WELL about 10 min later when i was texting my friends as usuall, my phone recieved a message but the screen was black. so i slid it open (wake on slide) and the screen turned on. replied to my buddy,closed the lid and the screen went black..... WTF? slid it open, screen on. closed, screen black.... and so forth. this is the way it has been since yesterday. even tried two more hard resets with no change.
NOW HERES THE WEIRD PART!!! if i slide it open JUST A LITTLE very slowly, the backlight turns on barely. just enuf to see the today screen but its very very dim. its as if there is a bad connection. but the screen is in portrait mode like it should be. if i open it fast the backlight turns on, screen shows portrait, then switches to landscape like it should. close it, it goes black but i know it switches back cuz the next time i open it, i can see it change again.
EVEN WEIRDER--- if open landscape, get into an app or program such as contacts where i can flick to scroll, ill close the lid, immediately flick the screen, open lid and low and behold my friends are just scrollin by!!!! the damn screen is responsive but there is no backlight!!! so to test i plugged into my laptop, activated mymobiler, and EVERYTHING works like it should when i touch the screen, use the buttons, open close the lid. it all shows up on my laptop. but the damn screen is still black when lid is closed. so i can literally look at my laptop and touch the black screen on my tilt and controll it!! WHY IS THE BACKLIGHT SHUTTING OFF WHEN ITS CLOSED!!!!???
so then i decided to tear the damn phone completely apart about 2 hours ago, check all connections, and clean all the dust. all connections checked out fine, put it back together and still have the problem. i know there is a magnet and sensor that tells the screen when to rotate when the screen is opened or closed but its obviously working cuz it will rotate the screen. my guess was that some kind of registry entry has been changed somehow. but then i realized thats not it because the hard resets didnt fix it. now im thinking hardware...... IM SO SORRY THIS POST IS SOOOOOO LOOOONNNNGGG but i dont know what else to do. phone was working great up until yesterday and i cant have this!!! has anyone had this problem with this or any other device or even know which direction to point me in??? PLEASE HELP!!! thanks in advance for any replies!!! the quicker ther better

I think your flat cable is broken. Doesn't make connection when closed (no backlight), barely connects when opened (backlight on).
So I think you need a new flat cable...

I agree with blueflame... I think it has nothing to do withthe rom flash.. it sounds like your ribbon cable is "Starting" to go.. unfortunatly it will only get worse where it wont; read you memory card, and evenutally your Sim card as well (speaking from experiance here).... If you are handy with tools, you can try to but a new one yourself and install it... But there are also some shops aroudnthe world, aswell and some members here who may be able to fix it for you... for a price (and not, I am not one of them)... Sorry for the bad news bud.. but I personally would rather knwo that than hard resettign 100 times and nrto beign able to figure out the problem...

hey. thanks for the fast replies! thats not exactly what i wanted to hear but like Teej said, its better to know than messing around with something else. now by flat cable are you reffering to the biggest ribbon cable inside the phone that connects the screen half of the phone to the keyboard half? Or the connector that comes directly out of the screen itself (meaning i buy a new screen and install and all is well) or is it another cable? but i think those are the only two that have anything to do with the screen other then the one for the sensor/magnet. here is a photo to help point out which ones. i have the manual so i can grab more photos if needed. thanks again for the help so far. good stuff. we are getting somewhere!!
photobucket.com/albums/b145/kewljay223/tilt.jpg

since im not allowed to post outside links yet, type this-----> h-t-t-p-:-/-/-i-1-8-. (minus the dashes between characters) in front of the link in my last post in your address bar to create the ACTUAL LINK and it should take you to the picture.