HELP: How to get to bootloader on Joying - MTCB Android Head Units General

Head Unit: Joying JY-UQ124, RK3188, 1024x600
Hi guys, I totally screwed up my unit by mistakenly flash a wrong update image. Now my device start up but with a black screen and the element light lit up light blue. The head unit will not turn off even after turning off the cars for hours unless you hold the volume knob (power button) until it power off. Try putting the device into recovery using the same old method that I always use to put device into recovery by sticking something into the reset and holding power still give me the black screen with nothing. I tried imitating selecting options to flash acting like screen does work even though it doesn't but it won't work either. The MCU that I flash while flashing the wrong update image is the right one for my device that's for sure. What I can think of now is that I might have to get into bootloader and fastboot the firmware by connecting it to my laptop but I can't. I followed a guide on the "Old Q&A Thread" on accessing bootloader but it don't work. The unit come with 2 female USB. By opening the unit, I can see there's a third USB connector in the middle of the board that is empty and don't know what that is for. Maybe OTG? Usually with phone, if you soft brick it, you can always fastboot a firmware and that solve the issue. I'm thinking it should be the same unless I'm completely wrong.
Can anyone help guide me to reflash the right firmware back onto my device when there is no more recovery?

hello someone has a solution, for this problem please?

Related

Lost Button & Keyboard Functionality

Started experiencing a strange issue with my tilt today..
When I soft reset it loads the Today screen, and then attempts to search for the contact 'wszx' (these keys are located next to each other). After this I can navigate the phone just fine using the touch screen, but the only buttons that work are the directional and center buttons located on the front of the phone, and the arrow keys on the keyboard. I cannot type at all using the keyboard, and pressing any of the other buttons does nothing (except the directional/center/Power). I also cannot Hard reset because the two soft-keys do absolutely nothing. I've hard reset in the past but it no longer works.
So am I SOL? I think I've tried everything.. and now I have a custom rom, etc on the phone and I have no way of getting it back to factory rom without the ability to hard reset.
Thanks for any help.
dam1en said:
Started experiencing a strange issue with my tilt today..
When I soft reset it loads the Today screen, and then attempts to search for the contact 'wszx' (these keys are located next to each other). After this I can navigate the phone just fine using the touch screen, but the only buttons that work are the directional and center buttons located on the front of the phone, and the arrow keys on the keyboard. I cannot type at all using the keyboard, and pressing any of the other buttons does nothing (except the directional/center/Power). I also cannot Hard reset because the two soft-keys do absolutely nothing. I've hard reset in the past but it no longer works.
So am I SOL? I think I've tried everything.. and now I have a custom rom, etc on the phone and I have no way of getting it back to factory rom without the ability to hard reset.
Thanks for any help.
Click to expand...
Click to collapse
Sounds like a hardware issue or simply a bad flash. Have you attempted to reflash the rom? Which rom are you using?
Well...
It wasn't working again this morning, but suddenly - out of nowhere - began to work properly. I'm stumped. If I ever figure out the exact issue I'll be sure to post back.
Thanks
Greetings,
I have same problem on my tytn...
Sometimes it suddenly starts working fine, but shortly it breaks again.
I have tried hard-reseting while it was working, but didnt help.
I think the problem appeared after charging my phone with a motorola v3 charger, so maybe it damaged my phone with over-voltage or something...
Anyway, if someone can suggest something i would be very grateful!
Hi I have exactly the same symptoms with my HTC Tytn II...when you power it on it starts typing letters (in my case CEDF). If the recording button is active it will start recording too. This happened suddenly and I haven't used any other charging apart from the usb and wall socket charger supplied with it.
All buttons (except front center key) and keyboard do not work. Any suggestions would be appreciated very much. This phone is only 8 months old.
Hi,
my Kaiser with dutty's WM6.1WWE ROM did the same this morning Yes I disabled the button 6 and stopped the voice recordings but all the hardware keys but few in the center of the keyboard are not responding. So I cant make or receive calls without taking the stylus out and touching the screen soft buttons andd that's pin in the ... while I am driving. I am using this ROM for almost a year now and I am extremely hapy (up to now) with its performance. When it all happened there were no activities on the phone - I woke up from a SMS notification (Yes I did receive an SMS from my bank) followed by repeting Voice Recordings. Any help will be highly appresiated! Thanks in advance!
keyboard problem
I am experiencing a similar problem with my stock tilt my keyboard does work however none of the text appears on the screen. I have tried hard reset and everything else I could think of, short of a clear storage reload. I would appreciate any help or suggestions from some of you more experienced users.
Bisonwill
anyone ever figure this problem out? im having the same thing happen now.
Same here
I've had it for a couple of weeks now.
I'm running WM6.1 from HTC (rom ver.3.29.422.1 from 2009-01-12) so nothing fancy here.
I even ordered and replaced the D-Pad and I replaced the keyboard (just the sticky part though). I totaly dismantled the phone and didn't find any issues with the cables.
Any ideas would be highly appreciated
Join the club!
This is crazy. My problem is exactly the same. I re-romed to the latest phoenix and it did not change a thing.
Help!
help....
any body here found a solution for the keypad/keyboard yet??? i have the same problem as you guys... any idea, thanks so much...
i have the same problem And there is something else. My Kaiser wakes up every 2 minutes - it's killing the battery. It works only for 6 hours now
Help
bump!!!
No more people with this issue or any solutions?
Pls! Help
ive joined the gang!
I decided to flash my cooked rom ive been working on.
i hadnt changed much in the kitchen and i think the flash has went badly.
it starts booting windows and where it should state "calibrate screen" it goes white and hangs there, buttons seem to respond by lighting up when pressed.
Now when i try to get it into bootloader or even hard reset it just doesnt work.
it just restarts the phone.
before this happened the backspace key hasnt been working for ages.
anybody got any ideas??
(lucky for me i have a backup kaiser!)
I'm having the same problem. Automatic wakeup, applications starting automatically, can't use keyboard, have to to use screen to use phone etc. I've hardreset using the clear storage method, reflashed a couple of times, but nothing helped. So here I am joining the club
If it's not a hardware issue, then try to flash another radio, many of the custom ROMs here doesn't include a radio, so if it's caused by a wrong radio, flash a new ROM without a radio doesn't help.
Check the Sticky for 'how to' if not aware.
PS: Check here for something need to know..
The question is.... how do I flash the device if I cant get it to go to boot loader and the OS wont boot properly !?
I think its an official Brick!
the really odd thing I've discovered is sometimes the OS leaves the loading screen on, and when it does if I press the FN and folder key, I get explorer up but its not responding... I haven't tried inserting a memory card yet to see if I can access that.
Danhargreaves said:
The question is.... how do I flash the device if I cant get it to go to boot loader and the OS wont boot properly !?
I think its an official Brick!
the really odd thing I've discovered is sometimes the OS leaves the loading screen on, and when it does if I press the FN and folder key, I get explorer up but its not responding... I haven't tried inserting a memory card yet to see if I can access that.
Click to expand...
Click to collapse
Try this:
1. Take out the battery from the phone.
2. Take out SIM card and SD card.
3. Press in and hold the CAMERA button.
4. Plugin to your computer using the USB cable, while keep holding press in the CAMERA button.
See does it enter the BOOTLOADER mode.
Once entered the BOOTLOADER mode, you can flash a new radio or rom right from there, in your regular way of running KaiserCustomRUU.exe.(Since you already have a HardSPL flashed on, otherwise a HardSPL is needed to flash first.)
Good luck.
Edit: If the power button and the camera button is still working, you can use the regular way of entering BOOTLOADER mode, and flash from bootloader mode or flash from SD card.
Originally posted by Manpreet @ www.sakajati.com
To enter in bootloader mode:
Simply Switch off your phone. Press and hold camera button and also press and hold the power button..You can remove ur finger from power button when phone is switched on but keep holding camera button until u come to bootloader …Now attach the usb to ur computer and do the flashing you normally do.
Click to expand...
Click to collapse
Thx for your suggestion:
I tried removing battery as sim and sd were already removed due to previous attempts in fixing!
so:
i removed battery (did not put back in), plugged in while holding camera
got nothing, so held power button at same time, the green light came on, then went off, and came back on again. but no bootloader.
i tried same procedure with battery in, and all i get is the OS loading up, no bootloader no matter how long i hold the buttons.
is there any other alternative method to get into bootloader (possibly involving other button presses)?
or any other ideas.
Really want to fix this as it was my "experimental" phone for cooking roms with.
Thanks again.
Suspect you have some hardware issue with the camera button. Can you ever take a photo with it?
Edit: Did you read through every post onthis thread:
MTTY (How to fix a bad ROM flash!)
If you tried that and still no luck, you can post your questions there. There are masters will keep an eye on that thread. And generally they only have time to look into their 'subscribed' threads, chances are they will not look into here.
Edit: Maybe the procedure I told is wrong, since I call from memory, check this:
dwny said:
If you have a bad flash....that's no reason to worry.
I haven't had to use MTTY to recover.
In most cases, if there's no issues with the Rom itself...you can pop out the battery and re-flash the same ROM from BootLoader Mode. This will also work if for some reason your computer crashes or loses power & restart during the FLASH.
If the Rom has issues.....the flash will not complete and the device will be stuck in BootLoader Mode. At this point,you must FLASH a FACTORY ROM!!
Pop the battery off 1st, power up the device, device will power up in BootLoader Mode, connect to pc & FLASH your devices FACTORY ROM. This will restore your device back to it's original out the box settings.
The above only works if the device has been put through the Hard SPL or SuperCID process.
I personally have never tried to flash a cooked ROM without unlocking any of my devices. From what I've read what others have experienced...the flash would just fail and they're stuck in BootLoader Mode.
Myself ... I've experienced bad flashes, bad cooked roms that I've cooked, lost power to a pc & had my pc crash during a flash. Listed above is how I've recovered. There is life after Bootloader Mode.
The only time you have to worry is if your device does not power up at all
As a public chef...it's your responsibility to set the parameters of your ROM! Meaning, Radio, HardSPL, program conflicts, etc.
You are not ultimately responsible if someone bricks their phone but if they pushed the issue, you could be hit with some form of liabilty because you failed on providing a simple Disclaimer that sets the expectation.
I hope I've been helpful.....
Click to expand...
Click to collapse
Edit again:
And try like:
Plug in USB first, and thenn press & hold Camera, Power button etc.
I remember once I read there is a way to enter bootloader without battery, just can not find the original again.

[Help] Loaded AT&T ROM onto GSM i9000

Hi all,
I accidentally loaded an AT&T ROM onto my Galaxy S. Now, I cannot boot it to downloader mode to flash another ROM. Anyone can advise?
Everytime, it boots into the AT&T splash screen and the screen turns on and off ... regardless of the key combo I used.
Thanks.
try volume up+volume down + power buttons
instead of power+volumen up+home buttons
No go. Tried alot of different combinations and the phone just won't go into downloader mode. Worse is the phone absolutely refuse to boot up once it is plugged in (whether USB or charger). When it's plugged in, it will not even display the battery charging icon.
When not plugged in, it will only boot to the AT&T splash screen and then goes into an endless loop of showing the screen and showing a black screen.
Think I have absolutely bricked the phone. I need advise. Can Samsung reflash the phone if I bring it in? I am willing to pay for them to do so. Or must the whole motherboard be replaced? If the latter, I am not willing to do so as getting a new phone will cost much cheaper (I still have a line I can recontract)
Bump. Anyone?
Welcome to the club; there's no solution yet
forum.xda-developers.com/showthread.php?t=735462&page=5
try this, i read from else where...
Let the bricked phone turn on, let it go into the stuck screen.
after a very looooooooong while, it will turn itself back off
after that, use the 3 button combination to turn it back into the DOWNLOAD mode
hold Volume Down + hold Home + hold Power
2 sec later should go directly to the Download Mode screen
Seifer1975 said:
No go. Tried alot of different combinations and the phone just won't go into downloader mode. Worse is the phone absolutely refuse to boot up once it is plugged in (whether USB or charger). When it's plugged in, it will not even display the battery charging icon.
When not plugged in, it will only boot to the AT&T splash screen and then goes into an endless loop of showing the screen and showing a black screen.
Think I have absolutely bricked the phone. I need advise. Can Samsung reflash the phone if I bring it in? I am willing to pay for them to do so. Or must the whole motherboard be replaced? If the latter, I am not willing to do so as getting a new phone will cost much cheaper (I still have a line I can recontract)
Click to expand...
Click to collapse
I am in the same boat as you.
Any solution for the problem?
A
adiabatic said:
I am in the same boat as you.
Any solution for the problem?
A
Click to expand...
Click to collapse
can you get into the Download mode?
if you can then it's easy with Odin
anyone able to fix this problem or get back to download mode
I bought the phone back to Samsung and they also cannot do anything. In the end, they changed the whole motherboard. Thankfully, they did it under warranty.

Phone-PC brick with no working 3 button - options?

Hi all,
I was flashing between Jf6 and JH7 today, wanted to see if flashing JH7 via different methods would give me a 3 button fix. (If it did fix it then flashing via Kies mini didn't do the job)
Ironically it backfired when Odin froze and I flipped out the battery
(Hey, I've been at the dl screen before when it was doing nothing and it survived!)
I plug the USB in, I get the exclamation screen
Do it with volume keys pressed, still get it
Hold down the volume + power and the screen goes blinking between exclamation and blank. I've tried releasing power keys at each point in those screens
I even took a video incase I'm not doing it right. Odin is running in the background. No USB plug-in 'pings' from Windows, as you can hear.
Anything I can do?
btw my bat build date is 8/13.. that bad week
I'm in Australia (bought phone off ebay) so sending it back to the States will be a bit of trouble.. I'm hoping I can work something out with the ebay seller otherwise I'll buy another cappy and hope someone finds the jtag points I guess.
same here. no button combo method that previous worked is working now. :/
OP, did you see this thread: http://forum.xda-developers.com/showthread.php?t=775911
not working for me, but maybe it'll help you ... ?
Tremere said:
Hi all,
I was flashing between Jf6 and JH7 today, wanted to see if flashing JH7 via different methods would give me a 3 button fix. (If it did fix it then flashing via Kies mini didn't do the job)
Ironically it backfired when Odin froze and I flipped out the battery
(Hey, I've been at the dl screen before when it was doing nothing and it survived!)
I plug the USB in, I get the exclamation screen
Do it with volume keys pressed, still get it
Hold down the volume + power and the screen goes blinking between exclamation and blank. I've tried releasing power keys at each point in those screens
I even took a video incase I'm not doing it right. Odin is running in the background. No USB plug-in 'pings' from Windows, as you can hear.
Anything I can do?
btw my bat build date is 8/13.. that bad week
I'm in Australia (bought phone off ebay) so sending it back to the States will be a bit of trouble.. I'm hoping I can work something out with the ebay seller otherwise I'll buy another cappy and hope someone finds the jtag points I guess.
Click to expand...
Click to collapse
You may also want to try removing and then reinstalling the Samsung USB drivers on your PC.
I've verified there is simply no USB device being registered no matter what OS, the phone is just sucking power.
@The_Bishop: Did see that, exactly the same as yours, plug usb in, get that screen
Anyone want to be awesome and send my Capppy back to Samsung on my behalf?
best method that never dies when i was in your situation......
unplug usb, turn phone off, then put battery in, turn odin on, now hold volume buttons ONLY then insert usb in phone, you will see download mode with odin identifying the port;
hope it worked ?!?!?!?
Believe me I have tried everything. There is simply was and still is no way to enter recovery or download mode on this phone. Its hardware locked!
a little off topic, but how do i find my phones "bat build date" ?
I had the exact same problem. If you do a battery pull.. hold down both volume buttons and plug the usb cable into the phone while it's hooked to PC then it bumps you into Download mode. I did the exact same thing you did and am running froyo at the moment.
Oh.. no power button.. just both volume buttons.
YoungGun821 said:
a little off topic, but how do i find my phones "bat build date" ?
Click to expand...
Click to collapse
Is on the underside of the battery, one facing into the slot.
i.e 2010.08.13
terrigan said:
I had the exact same problem. If you do a battery pull.. hold down both volume buttons and plug the usb cable into the phone while it's hooked to PC then it bumps you into Download mode. I did the exact same thing you did and am running froyo at the moment.
Oh.. no power button.. just both volume buttons.
Click to expand...
Click to collapse
Done that. Exactly what happens in video. Both volume buttons down, plug in usb.. no response, just brick screen.
I had the same problem.. the phone didn't register USB.. have you rebooted the computer? I believe i did that at one point.
terrigan said:
I had the same problem.. the phone didn't register USB.. have you rebooted the computer? I believe i did that at one point.
Click to expand...
Click to collapse
I did try once or twice. From another thread it was also said to disable driver verification on windows startup for x64 machines. which I also did.
Basically I want to hear from someone who:
a) has a captivate that could never enter dl/rescue via buttons, only adb
b) captivate didn't trigger a plug in 'ping' from Windows until they ??
FYI this is a Macbook Pro, and I booted into Win7 x64 Pro for flashing.
Hi I have the same problem..
What I did was this rooted with one click.. loaded Cognition 2.1.6 all was good..I saw the froyo so I thought lets try it. so opened up ODIN put it in recovery mode. with ADB could never get it in the button way.. it started to load and it froze. I didn't disable voodoo and IS THAT WHY I AM STUCK? I have tried every combo changed drivers computer will not see the phone.. is it a AT&T Phone
IS there anyway to fix it?? or can someone make a program to fix this? I would make a big donation if they did!!!
Thanks Forum!!
Yeah I had it in adb mode to enter download mode, maybe that is why it won't start back up.
I've now given the phone to a local mobile repair business, if riffbox or someone comes out with a Captivate rescue soon its probably as a end result of me
I sent mine back to Samsung as well. BTW, I have a battery from 2010.08.12 so I might be in the same boat. Wish I'd have used one of my OEMs to see if that made any difference, but I did not. :/
I have the same issue.
Rooted my phone through adb, which was fine. Couldn't get into recovery/download modes with hardware before then.
Now my phone is bricked, and not detected or even charging via USB.
wtf
If the repair shop cant fix it try this:
1.) Remove Battery, SIM Card and External SD
OR
2.) Press and HOLD VOL UP AND DOWN with USB inserted and THEN slap in the battery.
This worked for me, for some reason inserting the battery last did the trick.
Let me know if anyone finds a solution to this I have tried it all and my computer will not detect my phone. Has Samsung blocked this in there firmware?
Did you try what I posted above?
yep nothing if I could get it to detect in command prompt I could force it but it won't... the button thing didn't even work when the phone worked!
So ....

[Q] Way to reset with fastboot? Button issue...

This is a somewhat strange problem that I have, I've got a G1 which has none of the front keys working, other than the trackball. No talk, home, back, or end keys. The only way I've gotten it to boot is to plug it in and insert the battery, which causes it to power on. I got it from a friend who replaced it with a MyTouch3G.
I've been using this phone for the last few days, it is my backup (other than a RAZR...). It was still on 1.6, with a build of DRC83. It was kind of difficult to use without those buttons, but I could use the keyboard search button to just search for whatever app I wanted to run and switch apps that way. I previously had a B&N Nook, and I remembered that SoftKeys worked on it since it had a lack of hardware buttons, so I started using it, although only the home button worked without root. All of the tutorials I could find stated that I needed RC29 or lower to root (I assume they're all old) but I finally figured out that UniversalAndroot would do the trick.
I should have just been happy with that, but the phone had no more room for apps, and I was hoping to use Apps2SD, so I flashed ClockworkRecovery, downloaded CM6.1, and attempted to flash it, which now has me stuck in a boot loop at the 'ANDROID' text logo. I can get into fastboot (the camera button works). But since the home button is inop, that's my only option. Is there anyway to reset or restore the phone via fastboot? I've read that I can restore a nandroid backup that way, but for some reason the nandroid backup I made didn't save on my SD card (it must've crashed or failed to write or something). Is there any way to get another image to flash via fastboot? I couldn't find a stock image or anything. Am I just stuck? I thought about getting a broken phone off of eBay and replacing the buttons, is that my only option?
Thanks for everything you guys do on here, you all are the best!
is the button completely inop? what is your phone stats? radio, hboot etc...? i have a un-root method but you need recovery so i guess you cant do that... im not to sure about fastboot i will check for you though...
ldrifta said:
is the button completely inop? what is your phone stats? radio, hboot etc...? i have a un-root method but you need recovery so i guess you cant do that... im not to sure about fastboot i will check for you though...
Click to expand...
Click to collapse
Yes, all the buttons are completely inop. I disassembled the phone earlier and found the culprit.... the connection port on the daughter board which the input module plugs into has been sheared off of the daughter board (the board which houses the micro sd card port, the USB port, and connects to the input module, and which sits underneath the button assembly). Before disassembling it, I ordered a new input module membrane off of eBay, but it now seems likely that I won't need it. I'm not sure if there is a way to re-solder the port back onto the board, but I doubt it would work and my soldering skills aren't exactly the greatest. This of course makes perfect sense, since the trackball was the only part working; it connects directly to the daughter board, bypassing that broken port. So, in the meantime, I'll work on getting a broken G1 off of eBay and hope that it doesn't have a messed up daughter board.
Basically, if there was a way that I could get into recovery, I'd be good to go, but I can't. A few other things I've found by searching: apparently fastboot is accessed by holding the back key while booting? I was booting while holding the camera button, I had just tried it and assumed that it was the same thing. I noticed that it didn't seem to actually be in fastboot when I connected it to my computer (fastboot devices didn't show anything). So I might just be 100% stuck until I get the buttons fixed. I did see a version of Amon_Ra recovery that used the Menu button as an alternative to the Home button for confirmation, which was made for somebody with a broken Home button, however, even if I could manage to flash that recovery, I don't think it's possible to boot into the recovery with the keyboard Menu button.
I'll post the phone stats I get on Camera+Power On once I put the phone back together tomorrow. Thanks for the help!

[Q] Worst possible scenario. Brick? More Suggestions?

Well along with the entire world it seems I've done something wrong trying to get 4.3 on my phone. I've been around the block a few times, so I've done all the expected things, but my phone is stuck at the White HTC screen and won't turn off. When this happened the phone was in S-OFF, Relocked, and I was trying to flashback to stock 4.1. Holding down the power button or power button + volume down does nothing but flash the lights. I've held them down for 2-3 minutes with nothing but flashing, no reboot. Hooking the device to the computer recognizes the phone as an MTP device but I think that's just the default for a powered usb port.
With the usb cable connected, the charge light does not come on so it will eventually die when the battery is expended. I don't know that it will recharge, which may be good if I'm going to get sprint to swap it.
Any suggestions?
OK. So I was actually able to get the bright light trick to work, but now I have the issue of trying to get an OS on the phone. TWRP fails ADB sideload because it can't find /data and it won't let me check the mount box. Is there a way to fix the partitions?
Thank you for the PMs everyone. I've got it under control!

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