Database Develop

Weird charging problem

I was in germany for a few days recently and we went in someone elses old ford transit van. I plugged my phone into its cigarette lighter socket with my usual car charger. The blue light came on on the charger (it's actually a motorola charger but always works in my own car) and eventually the phone switched off.
I couldn't turn it on again, all I got was the first t-mobile screen for a few seconds and then it switched off. It was certainly hot weather but the phone didn't feel hotter than normal. Even hours later when the phone was completely cooled off it wouldn't turn on. I figured it would need to be returned for repair.
So I managed to do a hard reset in the few seconds the phone would stay on to see if it would make any difference which it didn't. Also, it was for reasons of voiding the warranty with all my 3rd party software which needs to be removed if sending back to htc.
When I got home and plugged the phone into my pc, after a few minutes of charging, it was all ok again! So I didn't need to hard reset and have now reinstalled everything. I'm pretty sure the cigarette lighter socket works ok as it worked once with my artemis and the same charger. I can think of no good reason it didn't charge the battery.
Btw, take a look at this picture. See the stain on the lower side of the back cover? Is that a heat stain from overheating? It won't rub off. The phone is always in it's silicon case. The silcion case shows no evidence of heat marks but I'm wondering if it contributed to the marks.
http://img41.imageshack.us/img41/1678/heat1.jpg
http://img43.imageshack.us/img43/1071/heat2.jpg
Maybe I'll take the phone to t-mobile and try and get it cleaned up or replaced, if only the back cover. What do you think?

Anyone with an opinion of heat marks on back cover?

[Q] Battery problems, do I need a new one?

Hi, so this is a partial port of a thread I started over on the General forum.
I may have possibly water damaged my Captivate a few days ago. It wasn't submerged or anything, but was in my pocket when I got water on my lap, and didn't come out immediately.
I disassembled the phone and let it dry for a few days, and after putting the battery back in and starting it things seemed to be working fine. However, the battery was almost dead to begin, and when I plugged the charger into the USB port, I got an error about battery temp being too high and charging pausing as a result.
When I plug the phone in while it is off to the wall charger, I get a screen that flashes from the usual charging picture (the battery with a little bit of green in it) to a picture of a batter next to a caution sign and a high temperature thermometer.
What should I do? I see no signs of corrosion on the battery itself or the pins that connect with it. So long as the phone was not plugged in, I got no errors and it worked fine (on the 2% battery life that is now extinguished). This leads me to believe the problem is in the micro USB port on the top of the phone, but I can't be sure. I cannot see in it very well and don't want to disassemble it unless I have to.
Should I just buy a new battery? Will I never be able to charge my phone through the USB jack? Does this mean I should get an independent charger for the battery, and just juice it up that way from now on (a big hassle)? Any and all advice or experience appreciated.

Has nobody had any experience with this?

If a phone gets wet when power is applied (ie: sleep mode), usually it doesn't matter if you let it dry. The damage is already done. Moisture in the usb connector can do all kinds of weird things to a phone.
Have you tried cleaning the gold battery contacts on the phone and the battery? You can use rubbing alcohol on the phone contacts, followed by a white eraser.
I'd go ahead and buy a new battery. If it doesn't work, you'll have a spare when you buy a new phone.

kegobeer said:
If a phone gets wet when power is applied (ie: sleep mode), usually it doesn't matter if you let it dry. The damage is already done. Moisture in the usb connector can do all kinds of weird things to a phone.
Have you tried cleaning the gold battery contacts on the phone and the battery? You can use rubbing alcohol on the phone contacts, followed by a white eraser.
I'd go ahead and buy a new battery. If it doesn't work, you'll have a spare when you buy a new phone.
Click to expand...
Click to collapse
I haven't tried using isopropyl yet. There doesn't seem to be any corrosion on the contacts whatsoever, so I didn't think it necessary. I'll give it a go.
It may be worth nothing that neither of the water indicators have turned color. Of course, the USB jack is a long way from where those water indicators are... It is completely plausible water got in there and never got down to the battery or contacts. Like I said, the only problems I've encountered are when the phone is plugged in to the charger...
Thanks for the advice though. I'll try it. If not, maybe its time to consider dismantling this thing and attempting a wipe down of the USB jack...

[Q] Did i damage my kaiser?

Please XDA members read this. Please.
Hi! I bought Mda vario 3 (kaiser, tytn2). Wifi was not working, i send it to repair, then its working but 40%. Later, few days i open it and see where did repair man solder some copper wire. to the antenna. I add long piece of copper wire to motherboard antena and strenght goes to 100%. I solder that wire and wrap around motherboard so it does not make any short circuit. i assembly phone and it WORKS AS my htc desire wifi. Then i realise my camera is blur, i open phone and find that camera need to be pressed to the board, i press it and add little little super glue so camera does not go up on one side and turn on phone (holding baterry behind with my hand), camera now works but it has some dots, i clean camera few times and dots dissapear, and last time i turned on phone to see if everything with camera is ok, low batery sign turns on and phone turns off.
From that, until now, i cannot turn on phone, it turns on but i cannot see windows logo. BUT, with old baterry, phone turns on, touchscreen does not work but keys yes, and tunrs off. And there is always low batery signal and sound. I check batery voltage its 3.7V. i Charge it, its 4.09 ( charged on universal charger). Still my (I LOVE IT) mda does not show windows logo and turns off. And when charging with 500mAh adapter baterry is how a little, and with 1000mAh its hot as hell, specialy camera and baterry connector.
I REPEAT, when i did soldering and camera cleaning (lens cleaning) i turned on and off my phone near 30 times (doing that 2 days whole process), baterry was lovering and suddendly dead.
I can buy new baterry 2000mAh for 8 dollars, what should i do? or send it to repair. PS my baterry was good for 2 days of average use.

Xperia T - stock, not rooted potentially reversed USB connection, now won't switch on

Hi
I’m wondering if anybody has any advice regarding my problem. I have looked here and tried what has been suggested.
My stock, never rooted, never flashed, Xperia T (think it was Android 4.3 but can’t now check, the latest Sony rolled out) was working fine until yesterday. I was on a plane and noticed it had 20% battery life left so I plugged it into the onboard USB port. The problem is I think I hay have plugged the cable into the port the work way round – not the connection on the phone, but the actual USB socket. This should be impossible but somebody obviously had broken the port and it turned out the cable could be plugged in both ways! (I don’t know if it was plugged in the wrong way round but is the only thing that could possible explain the sudden death.)
Could this have bricked it? I suddenly couldn’t get a red light to show charging and holding down power on and volume up or down does nothing. I tried charging overnight via a wall socket when I got home but the result is still the same. Just a black screen and no sign of life. I have also tried plugging it into a computer with Sony’s PC Companion but as the phone is not ‘on’, it can’t be found.
Does anybody have any advice where to go from here? I’m more concerned about some recent data from holiday on the phone than the actual handset itself. If the phone is dead, is there any way to read the internal memory?
Thanks

Try this: Unplug the charger, press the power button. The phone won’t power up because there is no charge left in the battery. But press the power button along and while doing so, connect the charger without releasing the button. Now, you will probably see the red light. Please don’t take off your finger from the power button for around 1 to 2 minutes when the red light for charging will glow continuously. If you feel tired holding it, you can try sticking a tape on it in it’s pressed mode. Once you are sure that the phone is now charging the battery again(red light keeps glowing even after the power button is released) kindly wait for 5 to 10 minutes or may be more before you press the power button again to power the phone up. Now the phone will be up and running
If that doesnt work maybe ur battery is dead or usb port broken

Thanks for the advice. I gave that a go after trying a 24h wall charge and not touching it (which did nothing).
So, I held the power down, plugged it in but nothing. I held it down for around 5 minutes both manually and then repeated the process using the rubber band trick to keep the button held down but no red light ever came on. I think I’m going to try a new battery as I genuinely see that I have nothing to lose as I doubt it will be possible for anybody to recovery data given as the phone can’t be switched on so if I break it further I’m in no worse position!
Thanks again for trying to help though!:good:

When I got my xperia t it was in described condition. I also tried everything (rubberband trick and so on) but the only thing working was to open it and pull and put in again the plug of the battery. After that it booted immediately and I got this sleep-of-death-thing nearly every day... Since I soldered the battery as described in this Topic it happens only ~once a week. Good luck!

SOLVED! In preparation for the new battery arriving, I decided to take the back cover off. I unhooked the top battery connector and decided to connect it back up again, just to see if it did anything. Plugged in the charger and a red light came on straight away! I let it charge for a good couple of hours and switched it on – not as easy without the case attached – and it worked. I’m so frustrated with it being such a simple issue as needing to disconnect the battery but even more frustrated with the design that it is meant to be a ‘sealed’ unit with a non-removable battery. I used to often need to disconnect my old Omnia II battery to restart it but that was a simple case of cover off, remove battery, replace battery , put cover back on, not the creaky, back cover fear of cracking exercise of yesterday. Still it’s working now and hopefully life in the old phone yet!

Isodrac said:
SOLVED! In preparation for the new battery arriving, I decided to take the back cover off. I unhooked the top battery connector and decided to connect it back up again, just to see if it did anything. Plugged in the charger and a red light came on straight away! I let it charge for a good couple of hours and switched it on – not as easy without the case attached – and it worked. I’m so frustrated with it being such a simple issue as needing to disconnect the battery but even more frustrated with the design that it is meant to be a ‘sealed’ unit with a non-removable battery. I used to often need to disconnect my old Omnia II battery to restart it but that was a simple case of cover off, remove battery, replace battery , put cover back on, not the creaky, back cover fear of cracking exercise of yesterday. Still it’s working now and hopefully life in the old phone yet!
Click to expand...
Click to collapse
Nice to see that bro!

Removed back cover, now won't turn on

I peeled off the back cover so I could swap on a new one and put a new Slickwrap on. With it still off, I found I can't get the phone to turn back on. I also found that I made a small puncture in the battery foil just under the edge of the black mat that the wireless coil in on. There's a glue/paint smell in that area that the rest of the open phone doesn't seem to have.
Should it be able to turn on with the back cover off or is there some "safety" that prevents that?
Is a small puncture in the foil a problem, or is it just a cosmetic wrap?
I have not put the new back cover on yet.

I plugged it in and the screen showed the charging battery animation. Still open back.

I put it on my wireless charger and it powered on automatically. Doesn't seem to respond to pushing the power button. No back cover still.

The volume buttons don't work either. I put the old cover back on and got no change.

I reseated the ribbon cable by the power/volume buttons and it seems to be fine now.
Still wondering about the battery foil puncture though?

I would replace the battery, just to be on the safe side. They are not too expensive. You don't want your phone to be a Galaxy Note-like bomb in your pocket.
Also, if it is the original battery, it will be old by now. Many people (me included) have had to replace their batteries because of sudden power offs.

The battery life has really held strong so far. And I am considering a new phone come Black Friday, so I might hold off on a new battery for now. I'd get a Pixel 3xl, if it weren't for the lack of headphone jack.