Develop Bugs

Empty DHD not charging, not powering on, no led.

Hello people
A couple of hours ago, my phone shut down due to empty battery. I came home, plugged it in and booted it, all was fine. At about 60% I shut it off and went to have lunch, when I came back and tried to turn it on, I couldn't.
Led was orange at the time, I unplugged the power cord but the led stayed on! I removed the battery to be able to reboot it, but when I re-inserted it I still wouldn't boot.
Now no matter how I try to charge it, led stays off like it's not charging. Tried various different cables/chargers, the same. Tried to plug it to the charger without battery but no led flashed. Tried to boot without sim/sd card, still the same.
Any ideas?
My battery has never been changed (for a year now) and has had a bunch of full drains. Could this be a dead battery? :/

Well seems the phone is fried... I tried two more official batteries and no go...

Sorry to hear it. I thought that at first when I read your thread but I thought because I am not the most experienced person here, there might be some kind of fix.
HTC will most likely if not certainly replace this handset for you, seeing as it just happened out of the blue.

Well I certainly hope so, problem is I suspect it's an import (from another European country) and local HTC service generally does not do well with European imports.
Anyway I'll give it a try, meanwhile I'm getting a sensation soon

I have a similar problem.
I'm lucky that my girlfriend has the same handset as I do, the I could compare the phone abnormal behavior tho that of her properly working phone.
The first thing I've noticed, after a while when the charger was attached, was that the phone is very hot and that the battery keeps draining out in a surprisingly high rate.
After a while I've noticed that even when the phone is turned off it wont recharge. Sometimes the Orange LED is on when recharging while it is off, and the LED stays on for a few seconds after removing the charger, as if it was still charging. Note that the affects of connecting the charger to the phone, are mainly the ones listed below (not necessarily altogether)
* The phone indicates as if it recharges.
* Going to an infinite loop of rebooting and crashing.
* Getting hot when power supply is plugged, or at any time when the phone is turned on.
Ultimately the battery was empty, and the only way I had to keep using the phone (mostly to diagnose the symptoms listed here) was to swap the battery with the one of my girlfriend's device, and charge my battery in her device while using her's. That's the place to mention that the battery works just fine and that the phone is draining any battery, no matter what.
I took it apart to have a closer look at the source of all of the heat emitted while the phone is turned on, and it seem to come from the motherboard itself.
That's all I have.
The worst thing is that a friend of mine who helped me opening it up broke the pcb of the volume keys. Now I checked and It turns out that that pcb is actually part of the flex cable, which sort of extension of the motherboard and is mainly the second most important piece of hardware of all the phone parts (not that there are so many). If I would be able to expose the conductors inside the flat cable I might be able to solder an alternative volume pad I'll make out of old some miniature switches I have. The cable is very thin. any Ideas of how to expose the relevant conductors without ripping the cable apart?

Just a (late) update:
It's been almost two years, I had given the phone to a close friend of mine after a couple of weeks since writing the first post, just in case he could resurrect it, nothing.
Then, a couple of months down the road, the phone suddenly woke up! He tried to connect it with the charger, after months of not being able to charge or boot it up and somehow it worked. And it has been working flawlessly ever since.
I just got it back to give to my girlfriend until her sensation is fixed, flashing Viper now
In case something like this happens to any of you, don't give up!

[Q] My T989 wont turn on

Never seen or heard about anything like this. I wonder if anyone encountered a similar situation.
I have a good reason to believe my phone is not bricked, although I'm not sure which is worse.
I'm not sure if it's related, but it might be worth mentioning here:
I noticed, since I started using this phone, that the battery level sometimes drops very fast. Normally the phone maintains normal battery level, but while opening "heavy" applications (e.g waze, google earth) or even during a phone call, It drains the battery out rapidly, roughly about one percent per two minutes. Sometimes even while connected to charger the phone shows a slight decrease in battery level. And it gets hot too.
Few hours ago, I turned it off to save some battery for afterwards, and since that moment it wont turn on. I tried several things.
I left it to charge.
I took the battery out and placed it back after a while.
I tried all possible combinations of the three physical buttons on the device.
I took out the sim card and the sd card.
At home I checked the battery, It shows normal voltage of 4.1V. I used several usb cables and measured the voltage between the battery connector inside the phone while the battery is removed. It indicates that the phone keeps charging the battery even while staying in this situation.
While plugging it to the computer, the phone is not even identified by it. It wont react to the computer just as if it's not connected at all.
Getting it to usb mode showed no result.
I have installed new roms on the device several times, yet more than a week has passed since the last time, and the phone worked fine since. except for the battery issue that I mentioned.
It was originally bought from T-mobile without contract, and it has a warranty assuming I would be able to bring it back to stock rom. Anyway, I'm using this phone in Israel and the nearest T-mobile service point is 10,000Km away, so I would do this as a last resort.
Hope for some advice, and may this post be able to help others that got in to similar situation.

Have you tried getting it into download mode? Disconnect from the PC, then keep both volume buttons + power button pressed while connecting the USB cable to the PC.
Sent from my SGH-T989 using xda premium

Phone won't turn on
Just had this same experience. I had just taken mine off the charger in the morning, booted it up and minutes later, it restarted on its own. Never came back to life. No possible combination of buttons, batteries, usb cables, ODIN running/not running would bring my phone to life. I mean I tried everything including the famous usb jig. Nothing. Sent it in to TMo and as it was within 30 days, they sent a new one which is running fine.

The problem is...
The phone is not recognized by any device, while being connected to usb. The only thing it does while plugged is to charge the battery, and that I can tell by measuring the voltage. It gives no visual indication, or respond to any button\connected device. Using that jig is the only thing I got left to do. I know it suppose to reset the counter. What else will it restart? My rom?, internal sd? the recovery partition? Can this physically damage the components on the phone's PCB?
And assuming the phone hardware is unharmed, are there any firmware malfunctions which are impossible to repair? (Generally I know there are, yet I'm asking specifically for these phones that comes with "download mode")

Had a situation where the device wouldn't turn on. Woke up one morning and it was still on the charger yet totally unresponsive.
Pulled the battery, waited 30 seconds and everything was fine.
Sent from my Hercules using XDA App

I wish it was that way for me too, yet it was one of the first things I tried. and yet, Nada. Here are some news: I gave the jig a try, and it didn't seem to work either.
On contrary to most of the fully bricked cases I heard about, my phone wont be recognized by the pc at all while being connected to usb. Not even a "Faild to connect" message. That leads me to believe that it is either a dead Boot-loader or a hardware malfunction.
I made a little research, and found out that it is possible to connect the pc through some kind of adapter directly to phone's processor, using specific pins. It is a simple kind of serial connection called Jtag. Initial factory configuration of electronic devices is only one application of it.
For that process I need to have that device along with it's driver, a boot loader to flash (According to what I've seen the T989 is not yet supported by these softwares).
I need to have some nerves to open up my device and to solder some pins (And I also need that Jtag pinout).
Does anyone know about a better way of doing it other than sending the phone half world to the U.S?

pins for connect
Uploaded with ImageShack.us
currently not supported by any unofficial service except US T-Mobile ... or Samsung US

[Q] Phone won't charge, but...

A few hours ago I noticed that the phone wasn't charging even though it was connected. So I did a few experiments: I put into into three different power outlets, I tried a different charger, I connected it to the computer but nothing happened (the computer didn't even recognize it). Then I decided to turn it off and try again, and these are the results: the screen turns on really often to let me know that it's charging, there's even the charging animation, but if I try to turn it on not only it isn't charged, but it doesn't seem to recognize the charger anymore.
There are a few other weird things, though: I use the XenonHD ROM, and once or twice when the phone was unplugged the battery icon was still "moving" as if the phone was charging, but the graph said that it wasn't. This probably is just a bug, but maybe it meant something.
My best guess is that the micro USB port is broken, but maybe you guys can help me with this?

Just like you said, your usb port is broken, propably a short circuit somewhere. But changing the charging port flex ribbon is very easy, even for a first timer (like I was/did a couple of weeks ago)
Sent from my Galaxy Nexus

And now the phone charges if it's turned off... but it's not like I can keep it like this, so I'll take to technical support tomorrow. Do you think I should flash the stock ROM and/or lock the bootloader?

Minnois said:
And now the phone charges if it's turned off... but it's not like I can keep it like this, so I'll take to technical support tomorrow. Do you think I should flash the stock ROM and/or lock the bootloader?
Click to expand...
Click to collapse
yes, flash the stock rom and relock

cm11 Arc won't charge, and battery is 0% - so the phone is dead. is there a solution?

hi.
my xperia arc (lt15a) has all of a sudden stopped responding to the charger - it won't charge at all!
tried other cables, tried connecting the usb to a desktop pc - but no respond!
the battery was at ~40%, and during the night I connected my powerbank to the charger, and the Arc to the powerbank (so trying to charge both of them simultaneously - something I never did).
in the morning I discovered that the phone didn't get charged.
I didn't worry much - I thought it was a bad cable, so I let the battery drain completely to 0%. but later I have discovered that it wouldn't recharge at all, and won't respond to a charger or a pc.
I have tried several things - which probably got the battery to get very drained-out. So now, if I try to power-on the device, it wouldn't turn on at all (it could turn on before), and the led near the micro usb port blinks in red for 3 times.
there is a very very tiny chance that a micro drop of rain got into the micro usb port, before the problem had started. But now I can't see any corrosion - maybe I don't know how to recognize it well enough? Anyway, I have tried to clean the port with alcohol and with electronic cleaning solvent (tuner cleaner) - but the phone still doesn't charge. maybe I didn't clean well? I really tried my best!
this Arc has mikeioannina's CM11 from 17.4.2016 - I used it for several months until now.
http://forum.xda-developers.com/showthread.php?t=2545354
the last thing I could do before the battery totally drained out was to enter the recovery mode (by turning the device on while holding the volume-up button), and then performing a factory reset. but it didn't help.
and I also want to mention that initially when the problem had started, when I connected the charger, sometimes the legacy xperia logo had appeared - but without the battery indicator afterwards (the phone just went off afterwards). now even this don't happen, and the phone doesn't respond at all to the charger. that's why I think it's a software problem, concerning the 3rd party rom that I've installed.
the mistake I've made was that I didn't try to reinstall the rom while there was still enough energy in the battery.... but I was abroad, and busy, and without a PC - so I couldn't perform it even if I was aware of the problem and wanted to solve it.
I don't have another battery or an external (desktop) battery-charger. and I am not enthusiast at buying these for this old phone (unless people here would be certain that it would definitely solve the problem).
I really want to keep using this device for a few more months - until the galaxy s8 / lg g6 would be released. I don't want to buy the current devices.
So could anybody help me?

hey i can help
xperon said:
hi.
my xperia arc (lt15a) has all of a sudden stopped responding to the charger - it won't charge at all!
tried other cables, tried connecting the usb to a desktop pc - but no respond!
the battery was at ~40%, and during the night I connected my powerbank to the charger, and the Arc to the powerbank (so trying to charge both of them simultaneously - something I never did).
in the morning I discovered that the phone didn't get charged.
I didn't worry much - I thought it was a bad cable, so I let the battery drain completely to 0%. but later I have discovered that it wouldn't recharge at all, and won't respond to a charger or a pc.
I have tried several things - which probably got the battery to get very drained-out. So now, if I try to power-on the device, it wouldn't turn on at all (it could turn on before), and the led near the micro usb port blinks in red for 3 times.
there is a very very tiny chance that a micro drop of rain got into the micro usb port, before the problem had started. But now I can't see any corrosion - maybe I don't know how to recognize it well enough? Anyway, I have tried to clean the port with alcohol and with electronic cleaning solvent (tuner cleaner) - but the phone still doesn't charge. maybe I didn't clean well? I really tried my best!
this Arc has mikeioannina's CM11 from 17.4.2016 - I used it for several months until now.
http://forum.xda-developers.com/showthread.php?t=2545354
the last thing I could do before the battery totally drained out was to enter the recovery mode (by turning the device on while holding the volume-up button), and then performing a factory reset. but it didn't help.
and I also want to mention that initially when the problem had started, when I connected the charger, sometimes the legacy xperia logo had appeared - but without the battery indicator afterwards (the phone just went off afterwards). now even this don't happen, and the phone doesn't respond at all to the charger. that's why I think it's a software problem, concerning the 3rd party rom that I've installed.
the mistake I've made was that I didn't try to reinstall the rom while there was still enough energy in the battery.... but I was abroad, and busy, and without a PC - so I couldn't perform it even if I was aware of the problem and wanted to solve it.
I don't have another battery or an external (desktop) battery-charger. and I am not enthusiast at buying these for this old phone (unless people here would be certain that it would definitely solve the problem).
I really want to keep using this device for a few more months - until the galaxy s8 / lg g6 would be released. I don't want to buy the current devices.
So could anybody help me?
Click to expand...
Click to collapse
i can fix your phone contact me on gmail [email protected]

Blinking LED, doesn't charge, can't get into fastboot

Hello!
First of all - yes, I am completely aware that there are MANY similar threads, I've spent almost 3 hours now finding solution, no luck. I hope some good soul out there will be able to shed some light on my case So here it is:
Today, I was caught in a bad moment with low battery, and the phone discharged completely and turned off. I've connected it to the charger just about 5 mins later max, but the blinking LED of death got me there I have it on a charger for about 4-5 hours now (original HTC charger, of course tried both, the wall and the usb), the LED is still blinking, phone is cold (it's getting quite hot when it's charging normally), no reaction whatsoever, can't even enter any fastboot or recovery or anything. I've tried every possible combinations I have found, vol+ & power, vol- & power, both volumes & power, long, short, nothing helps. Now what's different than any other threads out there? The phone was NEVER rooted, I didn't unlock bootloader, flash, nothing. It was as stock as it could be since I had motherboard replaced (2 years ago, on warranty in HTC service). Now the warranty has ended, so I'm really hesitating to send it there, as it's propably gonna end up with new motherboard again, no matter what the problem really is (I live in Poland, and that's just a common "fix" no matter what the problem is). Current motherboard is the one with CID B25 (the one that never got any update, so it's stuck on Kitkat for 2 years now). Everything was working completely fine just a few hours ago, nothing indicated any battery problems, it just discharged, and now I can't get it to work.
Does anyone have any helpful ideas?
Thanks in advance
@edit
Forgot to add it's a single sim version, model OPFJ400 D820n

Hello Scar9,
I had the same problem. To fix it, I had to charge my phone for 30 minutes. After that, I remove the back cover (to access to the battery). I connected the phone to my PC and I disconnected the battery. I wait any seconds (maybe 10 seconds) and I reconnected my battery (still the phone connected). The screen display a law charge of my battery (around 5 percents) but I can start my phone. After that I fully charged it and all seems OK !
I hope that can help you.
Regards.

Scar9 said:
Hello!
First of all - yes, I am completely aware that there are MANY similar threads, I've spent almost 3 hours now finding solution, no luck. I hope some good soul out there will be able to shed some light on my case So here it is:
Today, I was caught in a bad moment with low battery, and the phone discharged completely and turned off. I've connected it to the charger just about 5 mins later max, but the blinking LED of death got me there I have it on a charger for about 4-5 hours now (original HTC charger, of course tried both, the wall and the usb), the LED is still blinking, phone is cold (it's getting quite hot when it's charging normally), no reaction whatsoever, can't even enter any fastboot or recovery or anything. I've tried every possible combinations I have found, vol+ & power, vol- & power, both volumes & power, long, short, nothing helps. Now what's different than any other threads out there? The phone was NEVER rooted, I didn't unlock bootloader, flash, nothing. It was as stock as it could be since I had motherboard replaced (2 years ago, on warranty in HTC service). Now the warranty has ended, so I'm really hesitating to send it there, as it's propably gonna end up with new motherboard again, no matter what the problem really is (I live in Poland, and that's just a common "fix" no matter what the problem is). Current motherboard is the one with CID B25 (the one that never got any update, so it's stuck on Kitkat for 2 years now). Everything was working completely fine just a few hours ago, nothing indicated any battery problems, it just discharged, and now I can't get it to work.
Does anyone have any helpful ideas?
Thanks in advance
@edit
Forgot to add it's a single sim version, model OPFJ400 D820n
Click to expand...
Click to collapse
Have you got any solution for this problem.
I too have same problem..

Hi everyone,
I'm trying to revive an HTC Desire 820 (dual-SIM model) that I have. There were several hardware issues with the phone - main one being the battery _completely_ blown and bulged out! So, I replaced the battery, along with the complete battery charging board, and the complete LCD display (which was also gone!)
Now, the issue I'm facing is, even after replacing 3 of the major parts with new ones, the handset is just not coming back to life! The red/orange LED on the front just keeps blinking (indicating that the mainboard is still working) but the phone simply does not respond to any combination of buttons, or even when I connect it to my laptop!
My core question is: Do I really need to have the _original_ HTC charger and USB charging cable (both of which I don't have) to get this thing up again?
If I can get some help and some clues as to what exactly is wrong here, I'll be really, really, REALLY thankful to you...!!!
Thanks a ton in advance!