Help HTC Desire 820 won't turn on or charge!

Hadron said:

If it was software then reflashing using an RUU (which will wipe the device and install a fresh set of stock firmware) should fix it. Did any of these phone repairers try or suggest that?

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They did try it but the problem is, when they connect the phone with USB, phone doest respond at all! they cannot use commands which are used for flashing , adb cannot detect the device anymore

Seriously F**k*d with HTC. Highly disappointed. I'll never buy HTC product. High product cost + high repair cost. Also no one can repair except service center which are also third party service center not owned by HTC.

reset the charging logic of the device, first you must charge your mobile device for a minimum of 10 minutes using a wall charger. With the power off, press down and hold the volume up and down button with the power button for approximately 2 minutes. After 2 minutes, release all of the buttons. After the release the charging logic should be reset. Then charge your phone to 100% using your wall charger. If this doesn't work then its probably a failing battery or charge port.

I am curious what charger you have used to charge the battery. If you are using a generic charger or one that you had from a previous phone it may have caused damage to the battery or the charging IC on the motherboard. This is because the charger is sending the wrong voltage to charge the battery. If you were using the charger that htc recommends then the power IC should be fine, but the battery may still be the cause. If a Li-ion battery discharges to low it usually has a protective circuit built in that will put the battery in sleep mode when it drops below a certain voltage(I think around 2.8v-3v). When this happens the only way to get the battery out of that state it to give it a boost charge. Same idea as jumping a car battery. It needs a higher current for a short time to boost the battery above 3v then you can charge with a regular charger. Anywhere under 3.4v the phone won't power on but can still be charged without a boost if it doesn't go into protective mode. The protective mode keeps the battery from over voltage and under voltage. These batteries will discharge at faster rates if exposed to the wrong conditions. The battery may possibly be faulty and needs replaced.

Can you plug it into a PC?
Does the PC recognize the device?
Will it charge or light up the LED when connected to a PC's usb port?
If not you should examine the device's charge port for damage. The charge port may be damaged or dirty and preventing the phone from charging or being recognized by PC.

saksham jain said:

They did try it but the problem is, when they connect the phone with USB, phone doest respond at all! they cannot use commands which are used for flashing , adb cannot detect the device anymore

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So the USB port doesn't work at all, either in Android or Fastboot (different software environments), and yet they are convinced it's a software problem and not hardware? Maybe they've run diagnostics from the test points and seen nothing in those tests, and so are saying it must be software because they don't know what else. And yet they've also not tried just replacing the motherboard, which would replace both software and hardware?

It's sad but some people are lucky to get paid for laziness.

Did you inspect the port?
Any noticeable altering inside,maye loose?
See all 5 pins or maybe a bent pin?
If it was fine one moment and malfunctioning the next it might have been the charger you used before that,possibly bent a pin,who knows maybe the charger broke and left a piece inside the port;does it feel the charger make a full insertion,but it sound most definitely like it's hardware induced malfunction.

Tried all u have mentioned but didn't work any of it. Service centre told me that motherboard needs to be replaced. that's all. all the customers with same problem received the same answer.

Hadron said:

If it was software then reflashing using an RUU (which will wipe the device and install a fresh set of stock firmware) should fix it. Did any of these phone repairers try or suggest that?

Click to expand...

Tried this but process stops in between.... Hope May be new software update fix the issue... Waiting for new update from HTC....
local service person helped m and told me that motherboard is absolutely fine So no need of replacement of that. Problem is with only software. So we'll wait if new software update can fix this issue or not!!!!

I am having the same issue. My phone is out warranty now. been 14 months since i bought the my htc desire 826 dual sim.
well i showed it to the local repair shop and they told me that 99% its the prob of light ic. they recommended me to do some repairing/changing the light ic .. well i hope my phone will get back to life again soon

My HTC Desire 820S suddenly got switched off or at least the screen or flash light went off even though the battery was not dead. I tried removing the SIM Card and SD Card, long press the power button, long press the Power+Volume Key Down buttons but nothing worked.
Finally I gave a try to Long Press both Power+Volume Key Up buttons together for almost 20-30 seconds and was happy to see phone got rebooted.
Solution for HTC Desire 820S:
Press both Power and Volume Key Up buttons together continuously for almost 20-30 seconds.

Hi guys,
Even I'm facing the same dead phone problem with my HTC 820 dual sim. Has anyone found out a solution for it?

Hi guys,

I'm currently facing the same issue, I have tried pressing all sorts of "volume up/down" and power button combinations, unfortunately nothing works.
Weird thing is, when I plug the phone to my PC Windows makes that "USB device plugged in" noise, however the phone doesn't come up in This computer.
I guess it's a good thing however I have no idea what that "reflashing using an RUU" mumbo jumbo means so I guess I'm going to do some google research and try some stuff.
I have the phone since March 2015, however I have won the phone and the phone service provider has told me that items that were won only have a 1 year warranty instead of 2 years. Great, huh? I'm probably just gonna buy a Galaxy S7, however at the moment I'm forced to use my old Nokia Lumia 925 and, let me tell you guys, after using Android for over a year, Windows Phone sucks so hard it's almost unbelievable. I feel like an Amish.


alright, a quick update: as someone has suggested earlier I held volume up+down+power buttons for like 2 minutes straight. The phone kept vibrating in like 0,3 second pulses every maybe 15-20 seconds, however the screen didn't change, basically nothing except for the vibrating has happened. So I put the phone down, minded my own business and after a couple of minutes I have picked it up and the phone is quite hot. It's not even plugged in a charger, it's just sitting there and it's getting so hot it's not even pleasant to the touch. Will my apartment burn down during my sleep?

Hello all, same issue as discussed in this thread. Phone doesn't respond at all. only power button, power button + volume up, power button + volume down, power button + volume up +volume down. computer doent detect it...neither in fedora 24 nor in windows 10. just orange light keep blinking. Please Help

Hi guys..same issue with my 820 too...tried all suggestions...but failed!!!.
Just orange light keeps blinking.. Please help...

And so we all have the same problem where there is no scope to fetch a solution. Atleast does anyone gotta idea about other forums where users get a reply even?
Plz post it here so we all can get some idea for a recovery.

Well personally I stopped replying because there's nothing new to say.

Most of the reports here sound like hardware problems to me. Some reported repairers saying the same, others reported repairers asserting that it's software even though the device was completely inert (so how do they tell it's software? And I can't think how you could mess the software up that badly apart from interrupting a system update at a crucial point). If it is hardware then nothing but a replacement of faulty components will fix it. If it won't respond at all it doesn't matter whether it's hardware or software, it's beyond home repair in either event (FUBARed software should be fixable with a JTAG rig, but that's specialist kit). So if you've tried charging it, pressing and holding power, various button combinations, and it still doesn't respond, repair is what's left.

If you have an orange flashing light, which generally indicates overheating, you may be able to get it to run for a short period by cooling it, but be very careful not to get condensation in it as that won't help at all. But note "short period": that's not a fix, though it might help if you just needed a few minutes to get some vital data off the device (and no guarantees, just mentioning this because some people managed it with a different device a few years ago when they had an overheating problem).

Thanks hadron.
Well its better to forget the phone. Keep it apart and move on.

Just to add a note from a former HTC user, blinking amber/orange light also indicates a battery failure and the phone won't charge or boot. If your HTC has a removable battery, try replacing the battery first.

Hi Lvt,
HTC 820 doesn't come with an option of removable battery and as many of the users expressed here, all these were tried and failed. Hope you didn't have time to read the complete transcripts . May be all wanted to know whether the phone be brought back to life or not without shelling much as this problem happens within 15 months on an average .

guys anyone got the solution? or only way to replace the motherboard?

We got no possible solutions. Lost the hope bringing it to life.

I'm having the same damn problem... Phone was fully charged, i was on viewing my facebook account then it suddenly gave me a complete black screen and a flashing green light then nothing?! On charging just red flashing light... My service center employee just got it in her hand for a second then said it's a motherboard problem and its gonna cost as much as a new phone approximately.. A local repair center that i gave the device to check, said they recently had another customer with the same device, same problem!!!

I'm having the same damn problem...my phone also suddenly gave me a complete black screen and a flashing green light then nothing?! On charging just red flashing light... My service center employee just got it in his hand for a second then said it's a motherboard problem and its gonna cost around 10 to 15k.
i think we should take legal action against htc for this problem. i will send a mail to htc stating the problm
lest see what happens.