Database Develop

Kaiser problem...

Hi! Some weeks ago my kaiser stop playing sounds like music and the ringtones.I dont know if it happened when i dropped it on the floor... So i opened my kaiser (bought on ebay and has no warranty) to see if there was something changed. The speaker looks well but i bought a new one from ebay (received it broken ). I just opened it a little but i saw something that i dont know if is right and i would like you to tell me. I dont know if it's a little battery but it looks like it's covered with a strange substance.Now is it supposed to be there or could it be caused by huminity for instance?
Here are some pics:
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Hi. It Is "golden cap" which is back up source. The P/N is in the service manual. The replacement part could be found on digikey...The substance sould not be there. Cheers!

you should replace that battery, its fully corroded, which may lead to rust in your kaiser... take it out and wait for the new one to arrive!

Yup that's one leaky battery. You'll need to replace that and clean up the contacts extremely carefully, being careful not to get acid on yourself or anything else.

use of golden capacitor
Hi
I face some trouble with my Kaiser (sometimes don't charge battery, sometimes reboot...)
Since it did not charge battery at all, I opened it and remouted it : it work properly again.. then it started not working again
I'm asking myself : if this capacitor is old (about 3 years) what could be the symptoms of its failure ?
Thank you for your help

Yes, Good question!!
My kaiser stopped charging. The PC would recognise it and it would (usually) boot fine but would not charge. I found another one that i bought cheap.
I had the other one laying around and thought i'd have a play with it.
I tried:
--Other USB cables.
--Other chargers.
--Other battries.
--Charging with an external battery charger.
Turns out that it all works fine but the phone will not work as a charger. I read somewhere that the fuse may have blown that is why the PC still recognises it. However, i'm not sure i can rule out the golden cap. Anyone changed a fuse? anyone had the same problem and a change of the golden cap solved it?
There is not much chatter about these problems either. I may start a new thread...

Hi
I guessed that my problem came form the internal battery connector.
I soldered directly a battery on the connector, and the battery charged OK.
But this fix seems more to be a "lucky strike" then a real patch to the problem.
Tell me if you open a new thread about golden cap.

I have a guess why the phone stopped playing music: I think the slot of the volume button is loose. On your first picture next to the main battery pins there is a small slot into which the volume control connects. When you put it back, make sure it is well pushed into the slot, I had this problem previously.

[Q] Can I recover this LG G2 ? Snow on screen(see pic)

I got this phone the other day, It's just got snow all over the screen (it's out of warranty) so I opened the cover, pulled off all connectors and re-seated them (didn't remove any boards, just what was accessible once the back covers were off.
I am new to Android but, this model I have replaced 2 Displays on (not this phone), seems I get one for cheap with a broken display, I fix it and someone offers me more than triple what I paid for, so I keep selling them :-/ (a man cant turn down a big profit). So I know how to pull this phone apart and replace parts if needed. I was looking to give Android a solid shot here (I am a Windows Phone person now)and not sell this one...
Not sure if the display is toast or this is just a Bricked or something else.
Note:
-If I connect to a PC, it connects fine
-When the phone is on, If I touch the lower of the screen, I hear clicking
-Double click on the center of the screen wakes up the display.
-Verzion software tool does not detect the phone (even though a drive is mapped for it)
Also to know, I have never rooted a Android device, so no idea on how to tell if it's rooted or not from the file system. Yea, when it comes to Android devices, I am a NooB.
Any idea ?
Thanks in advance !

Ok, Still trying to trouble shoot this, figuring it was a Brick or something with a lot of effort (The touch screen seems to work but, power off was a guessing game where to push to get it into bootloader mode).
I tried to go back to Stock with it, following these directions...
http://forum.xda-developers.com/showthread.php?t=2448960
Now during the process, every once an a while, on the top of the screen, I can see about 1/2 of the ICONs, it's static so it does not update but, it's the most I have seen off this display.
After showing Successful, it's still doing the same thing. accept a hair of it, static across the top of the screen.
So, does this lead down to a hardware based issue (if so, what part should be replaced), or is this display damaged and needs a replacement ?
Has anyone gone through this and can help ?
Edit, Picked up the one of the cables for the phone that the video, power, headphones all plug into, as all my problems are resulting in something that plugs into this cable, figured I would give it a shot, The only things that are left are the Main board, or the display itself.
Maybe this will fix it ?
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Does anyone have any input that might help me here ? Will this part fix it, or is this phone screwed completely ?

Question Vivo X70 Pro+ completely dead

Hi all, my phone (actually wife's) is a Vivo X70 Pro+ Chinese version.
One day when she was reading novel on the phone, it just freezed up and she tried to long press the power button to shut it down.
Aftwards, the phone just cannot turn on correctly, but just with different kinds of corrupted screen (screenshot for example)...
Just wonder if there is any method that I can try to recover it with aid of computer?
As there is no way that I can take it back to Mainland China for the warranty service...
Many thanks for any help/suggestion to be offered.
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Where are you located? That COULD be a faulty / loose display connector. Hardware fix is probably necessary.

Killuminati91 said:
Where are you located? That COULD be a faulty / loose display connector. Hardware fix is probably necessary.
Click to expand...
Click to collapse
I'm in Hong Kong... Just wonder how the phone just sudden death when using...

I guess your best bet then would be to take it to a local repair shop or open it up yourself to check the display connector. What happens if you reboot the phone? Does it show the Vivo 5G logo? You can force reboot by holding volume down and the power button until you feel a vibration.

ng_tim said:
Hi all, my phone (actually wife's) is a Vivo X70 Pro+ Chinese version.
One day when she was reading novel on the phone, it just freezed up and she tried to long press the power button to shut it down.
Aftwards, the phone just cannot turn on correctly, but just with different kinds of corrupted screen (screenshot for example)...
Just wonder if there is any method that I can try to recover it with aid of computer?
As there is no way that I can take it back to Mainland China for the warranty service...
Many thanks for any help/suggestion to be offered.
View attachment 5590963
Click to expand...
Click to collapse
If you know people who are aware of the craft you can order the display from vivo official website and get it changed locally

Mi 9T Pro Black Screen

Hi, I've been using my Mi 9 for almost 3 years with no issues but since 2 weeks phone started to behave strange. Phone had no contact with water, didn't fall to get damage, had no chance to overheat recently.
When you lock the screen you couldn't unlock it, no reaction on power button click or tap on finger print, the only way was to hold down power button and reset the phone. The issue become more frequent so I thought this is becouse almost all the memory used but I free up 10GB and nothing changed. I told myself I need to do new backup of the phone and a hard reset but before I completed that, my Xiaomi got bricked.
The screen is black and does not show anything.
I managed to run recovery mode once but option to reboot the phone didn't help, and since that time I can't get to recovery mode either.
I thought that maybe I'll use Clonezilla to clone entire device memory do external SSD but it's not recognized as storage device.
When I plug it with USB-C cable to Windows 10 it actually shows up as Mi 9 T Pro:
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I thought that I'll maybe I'll use: adb pull /sdcard/ but I get error: 5e08c65f unauthorized
I've backup from Dec 2021 and I managed to copy 90% of Camera folder before phone got bricked but still missing recent videos which are important to me (mostly videos of my 2-years old son).
The most important question here: Is there any other way to copy data from the device since looks like Windows computer can see it still when connected with USB?
What's the possible issue of the phone, and how can I fix that? If it's not possible to fix it at home, is it possible for Xiaomi Autorized service to repair the phone without erasing my data?
Please help! I'm in desperation, I love that device, it's design and features, I thought I'll be using it for at least 3 more years or possibly as long as it will live as I can't see any other devices that have: Popup camera, mini jack and USB-C.

Pixel 4XL Screen Failure

Hi, the screen on my Google Pixel 4XL just went bonkers with all this flickering purple lines. Sometimes, a portion of the screen would still display normally. The phone has just reached 2 years of usage and I have never dropped it before.
The touch screen is still working normally as I have tried using the phone while mirroring to my PC. The 90 Hz refresh rate has also been turned off.
May I know what is causing the problem and if repairing it means the replacement of the entire LCD screen (it will cost me about 250 USD in my country)? I am trying to decide if it is worth repairing the phone or to just go for a Pixel 6 or 6a.
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Alpha314 said:
Hi, the screen on my Google Pixel 4XL just went bonkers with all this flickering purple lines. Sometimes, a portion of the screen would still display normally. The phone has just reached 2 years of usage and I have never dropped it before.
The touch screen is still working normally as I have tried using the phone while mirroring to my PC. The 90 Hz refresh rate has also been turned off.
May I know what is causing the problem and if repairing it means the replacement of the entire LCD screen (it will cost me about 250 USD in my country)? I am trying to decide if it is worth repairing the phone or to just go for a Pixel 6 or 6a.
View attachment 5651575
Click to expand...
Click to collapse
Hey!
So that doesn't seem to be a software issue but you could try to factory reset the phone. If it doesn't fix try to open the phone, disconnect and reconnect the display cable. If nothing worked the screen is damaged. Here's a link to the ifixit guide. Things that cann cause screen to break are extreme temperatures(if you left the phone under sun for long periods of time or where you live snows and you left the phone outside), water damage, or even hard strokes.
On Europe you can find replacement screens for 70 euros more or less so it's up to you if you want to upgrade or not. I personally really like the P4 and I personally would fix it BUT it's your decision.
Hope this helps you!