yashsingh1/xdaforums huggingface dataset:
[One (M9) Q&A, Help & Troubleshooting] talhamid:
I have this same issue after receiving the 1.4 update.

Performance is better, the phone doesn't heat up and even the battery life is better for me. I was over the moon, before I plugged it in.

I trawled the internet and this is the ONLY thread I found reporting this issue. This means that while it is a serious issue, maybe only a few are having it. In any case I have shared this thread with HTC and HTC US on their Twitter accounts, I suggest every poster on this thread to do the same. Once a few tech sites latch onto it, I believe we will surely have a solution.

Side note: I think Qualcomm, not HTC, have messed up big time and they are using small manufacturers as hapless guinea pigs since they don't have a choice. HTC was set to restore their former glory with M9, by providing a higher res (notwithstanding mediocre) camera, and somehow improving the M8 in almost every way. It cannot be more unfortunate that Qualcomm chose to make their first major blunder in years and who else, but HTC, had to bear the full brunt. Bad times for Android manufacturers.
[One (M9) Q&A, Help & Troubleshooting] petvas:
There are at least two other threads I know of: One at Androidcentral and one at android-hilfe.de (German)

I have also reported the issue to HTC via twitter and got a response yesterday night from them. I hope they fix it soon.
[One (M9) Q&A, Help & Troubleshooting] arunbvijay:
My HTC M9 very slow to get charged

I dont know why this happened now after june 20(Updated to software number 1.40.401.8) my phone takes more than 6 hr to get fullly charged. this gets really irritating . Can any one have a solution for this.
[One (M9) Q&A, Help & Troubleshooting] petvas:
Read the whole thread. Currently only a reboot seems to temporarily help.

I had returned my device since I was very disappointed, but then I remembered that I updated by downloading the OTA files manually and using the Bootloader mode. I don't know if this way to update my device could cause this issue, so I bought another M9 today (crazy) and I am now installing everything from scratch. Charging seems to be normal so far.

I would like to wait for tonight though to see how the device now behaves.
[One (M9) Q&A, Help & Troubleshooting] petvas:
So, even after getting a new device and setting it up from scratch the slow charging issue is unfortunately there...

Interesting enough and using the standard charger the problem is less apparent compared when using the rapid charger. I found out that a reboot always solves the slow charge issue. I also have the impression that a reboot isn't really necessary. Today I just pressed the power button to put the device to standby and then I connected the rapid charger, and my M9 charged fast!

Of course I would like to repeat this many times to see if this can be used as a workaround. It would be really great..Could someone try that too and post?
[One (M9) Q&A, Help & Troubleshooting] mdonders:
[MENTION=1941826]HTC_[/MENTION]UK suggested on twitter to do the following:

"try this: Turn Phone OFF > Connect Charger > Press and hold the Power Key + Volume Up + Volume Down Key for 2 minutes"

This should re-calibrate the battery.

I'm now testing if it works.

Grtz mark
[One (M9) Q&A, Help & Troubleshooting] ref1ux:
HTC recommending this via Twitter:

try this: Turn Phone OFF > Connect Charger > Press and hold the Power + Volume Up + Volume Down Key for 2 minutes

I'll give it a go next time I have my charger to hand.

EDIT: whoops, beaten by the above!
[One (M9) Q&A, Help & Troubleshooting] zeus4466:
It seems that the solution provided by HTC works

I've tried it with 2 different chargers (fast and slow) and it seems that it is working :)
[One (M9) Q&A, Help & Troubleshooting] petvas:
Let's see.. When holding all buttons the system boots and it shows the boot loader menu. Is this normal? I guess yes.
[One (M9) Q&A, Help & Troubleshooting] petvas:
I can report positive results. My quick charger seems to be charging fast.
[One (M9) Q&A, Help & Troubleshooting] iElvis:
This would explain why not everyone has experienced it. It would seem some people's battery management settings got borked by the firmware upgrade.
[One (M9) Q&A, Help & Troubleshooting] petvas:
What I don't understand though is how my battery needed calibration. I bought a new M9 last Saturday and its battery should be ok..
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
But then you upgraded to the 1.40 firmware, right?
[One (M9) Q&A, Help & Troubleshooting] iElvis:
It seems to be related to the 1.40 firmware update. Just because your phone is new doesn't mean it wasn't updated at some point.
[One (M9) Q&A, Help & Troubleshooting] petvas:
Yes, immediately.

Gesendet von meinem HTC One M9 mit Tapatalk
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
So, then...something about the upgrade to 1.40 firmware messes with the battery calibration...or so HTC says.

I'm really interested to know if anyone does the battery calibration "fix" and still has problems.

I'm on InsertCoin, and [MENTION=1186202]baadnewz[/MENTION] implemented a fix into his rom, so I haven't had the charging issues in a while, until I flashed a different kernel.
[One (M9) Q&A, Help & Troubleshooting] baddevil2:
Will try calibration tomorrow and report back ;)

Gesendet von meinem HTC One M9 mit Tapatalk
[One (M9) Q&A, Help & Troubleshooting] mdonders:
I did the calibration thingy this morning, and was able to charge from 70% > 100% normally twice today. (Which I wasn't before)

So... Fingers crossed, but it seemed to help!!

Grtz mark
[One (M9) Q&A, Help & Troubleshooting] xerogee:
I did the battery reset today and it seemed to have worked.

The phone booted into the bootloader and then restarted several times after that, every time showing the bootloader again. Almost got the cramps in my fingers ;)

After connecting the fast charger the battery percentage started to fly upwards again.
[One (M9) Q&A, Help & Troubleshooting] petvas:
I am not so sure this is working. Remember, after a reboot charging works properly. Tonight I charged my M9 from 50 to 100% in 3 hours, using a rapid charger..This is not good.
[One (M9) Q&A, Help & Troubleshooting] senbros:
Advise.. change ur device to developer edition and load latest software..all working properly..
[One (M9) Q&A, Help & Troubleshooting] xerogee:
And how exactly would you do that?
[One (M9) Q&A, Help & Troubleshooting] petvas:
If I did that, wouldn't I miss Sense and Blinkfeed? I want to keep both..
[One (M9) Q&A, Help & Troubleshooting] petvas:
Actually I don't care about Sense, but I do about Blinkfeed.
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
you need to be s-off

http://xdaforums.com/att-one-m9/general/att-developer-edition-ruu-how-to-t3086948

Developer edition is a sense rom just doesn't have carrier bloatware.

Developer edition RUU will downgrade you to 1.32 firmware though.
[One (M9) Q&A, Help & Troubleshooting] petvas:
So I would just get OS updates? Is the RUU available for European devices too, or is it US only?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
You would get both firmware and OS updates, but as far as I know there hasn't been a 1.40 update for the dev eidtion or any of the US carriers.

I'm not sure about European devices. You'll need to research that on your own. But I think you can convert. Is the developer edition only sold in the US? I'm on ATT and I have no problems flashing and using WWE firmware and ROMs.
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
Please tell me if have worked :(

Sent from a beautiful HTC M9
[One (M9) Q&A, Help & Troubleshooting] mdonders:
The battery calibration did not permanently helped.

Yesterday it worked, but today it failed again.

I'm now trying if clearing the cache partition method will help.

Method here:

http://forums.androidcentral.com/ve...partition-stock-recovery-un-rooted-phone.html

I will let you know in a day or two.

Grtz mark.
[One (M9) Q&A, Help & Troubleshooting] petvas:
I think we all thought that it worked because we charged our devices directly after rebooting. This is always working..
[One (M9) Q&A, Help & Troubleshooting] petvas:
Don't bother doing that. Bin there, done that already. It doesn't help.
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
I think all of the suggestions of a "fix" was just HTC buying time until the new firmware dropped.
[One (M9) Q&A, Help & Troubleshooting] hamdir:
2.7.401.1 solves the problems, also flashing the PNP from 2.7 on top of 1.40 solves it as well
[One (M9) Q&A, Help & Troubleshooting] davidtm0:
Is this another update after 1.40??

Regardless, I hope they incorporate a fix in the US carrier updates.

Sent from my HTC One M9 on Tapatalk
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Yes. 2.7 is after 1.40. Hopefully US will jump straight to 2.7.
[One (M9) Q&A, Help & Troubleshooting] petvas:
The thing is that 2.7 is not official yet. [MENTION=1144067]hamdir[/MENTION]: What is a PNP and how do we flash it, as you suggested?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Can you please elaborate on this? Are you talking about pnp.xml?
[One (M9) Q&A, Help & Troubleshooting] petvas:
After searching the forum it seems that PNP refers to a Pick and pack ROM (whatever that means - I know nothing about custom ROMs..)

Where do we find this ROM? Can we just then update over the stock 1.40? If we do it, will we still get OTA from HTC?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Pretty sure in this context pnp refers to "power and performance" manager. The "fix" for slow charging when 1.40 was released was to overwrite the 1.40 rom's pnp.xml file with one from a 1.32 rom. I'm wondering if that's what [MENTION=1144067]hamdir[/MENTION] was talking about, or if it's something different, but I'm confused, because I wouldn't call the process I just described as "flashing" pnp.
[One (M9) Q&A, Help & Troubleshooting] petvas:
Ok, how do we find the right pnp.xml and how can we install it on a stock M9?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
How stock is it? You definitely need to be rooted to do that. And it would be smart to have a new TWRP backup.
[One (M9) Q&A, Help & Troubleshooting] petvas:
It runs the official ROM. I understand why it must be rooted, but I don't want to do that, so I guess I will have to wait. At least I know that if I am in a hurry and want to quickly charge my M9, that a reboot is required :(

If I am not in a hurry, I can just leave the device to charge over night..
[One (M9) Q&A, Help & Troubleshooting] mdonders:
Indeed it didn't work.. Let's hope they roll out the 2.7 update soon, cause this is getting really annoying...

Grtz mark
[One (M9) Q&A, Help & Troubleshooting] hamdir:
yes
[One (M9) Q&A, Help & Troubleshooting] ref1ux:
So HTC's fix definitely doesn't work here either. Phone told me it would take 18 hours to charge last night. Crazy!
[One (M9) Q&A, Help & Troubleshooting] xerogee:
It seems to have worked for me. No reboot yet and charging fast with the quick charger.
[One (M9) Q&A, Help & Troubleshooting] petvas:
You had to reboot in order to calibrate the battery.
[One (M9) Q&A, Help & Troubleshooting] xerogee:
Of course, but that reboot was several days ago. [emoji2]

Since then, no reboot and several fast charges.
[One (M9) Q&A, Help & Troubleshooting] petvas:
Ok, that's good to know. Did you get any message after battery calibration? My device went to the bootloader menu and the menu went on and off every couple of seconds. Is that normal?

Gesendet von meinem HTC One M9 mit Tapatalk
[One (M9) Q&A, Help & Troubleshooting] xerogee:
No message after the battery procedure. Like you said; a lot of reboots going to the bootloader menu. After about two minutes my fingers started to get tired and I stopped.

Since then no longer charge times.
[One (M9) Q&A, Help & Troubleshooting] petvas:
Ok, thanks. The same here but unfortunately the problem still persists.

Gesendet von meinem HTC One M9 mit Tapatalk
[One (M9) Q&A, Help & Troubleshooting] mdonders:
It's not easy to get an answer / feedback from HTC on this issue, but found this reply on twitter:

[MENTION=1941826]HTC_[/MENTION]UK > [MENTION=5397070]royson[/MENTION]berg "Hey Roy, this is an issue that we're investigating currently, it should be resolved soon"

Grtz Mark
[One (M9) Q&A, Help & Troubleshooting] petvas:
Tonight I plugged my M9 and it charges fast. Very interesting. Yesterday it was slow...
[One (M9) Q&A, Help & Troubleshooting] talhamid:
For me HTC's prescribed fix didn't work (surprise surprise). However, rebooting before charging always helps. I think its definitely a calibration issue. Before fast charging starts it shows "2 hours to charge" and is done in 1.5 hours.
[One (M9) Q&A, Help & Troubleshooting] baddevil2:
So, yesterday (the day after the calibration) I put the charger on my phone without rebooting and it charged faster than before Oo :D My device said, about 1h30 (from <10% to 100%) with a 1,5Ah-Charger...

Before calibration I had to reboot and it takes about 2-3h to charge <10% to 100%...

Will have a look over the days, if it changes ;)
[One (M9) Q&A, Help & Troubleshooting] Vogal:
The fix didn't work for me either.
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
Hi guys, htc on twitter told me to do a wipe cache, and now charges normally, good

Sent from a beautiful HTC M9
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Probably not permanent fix. Please let us know if the issue resurfaces. They're stalling.
[One (M9) Q&A, Help & Troubleshooting] xerogee:
Today, after a few days of fast charging, the problem resurfaced :(

Trying the fix again tonight.
[One (M9) Q&A, Help & Troubleshooting] haydnlj:
HTC told me to wipe cache also (which I'd tried myself previously). It certainly helps, but is a short term fix - more likely the reboot is helping.
[One (M9) Q&A, Help & Troubleshooting] wafoij:
Same issue here with everyone. Since updating to 1.40 the charging has been torturously slow. Only reboot fixes the issue, but it's just ridiculous having to reboot my phone everytime I need to recharge!! 270mA on a Quick Charge 2.0 compatible charger is just NOT on!! Charging current jumps to 7 times that (2110mA) after reboot!!

Tried multiple chargers, the stock charger, third party chargers with & without Quick Charge 2.0 support, results are all the same!!

"Battery Calibration" only works because of the reboot that's required, the problem always return consistently the next time I charge the phone. Tried clearing the cache partition with no avail.

I'm now regretting the decision of giving HTC a second chance after my M7 camera gave up its ghost while still under warranty. If this doesn't get fixed quickly then it'll certainly be my very last HTC phone ever. And I do hope that the company collapse soon after so they'll stop making these types of expensive rubbish!!
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Anyone that's rooted can "fix" this by copying the system\etc\pnp.xml from a 1.32 base rom to the same folder on their rom (just overwrite the existing pnp.xml file).

or you can flash the insertcoin rom where it's fixed already

thanks baadnewz with insertcoin for sharing this fix with me (http://xdaforums.com/showpost.php?p=61454393&postcount=577)

Edit: of course, 2.7 firmware is sure to be released through OTA soon and I think that fixes the issue too.
[One (M9) Q&A, Help & Troubleshooting] petvas:
At the beginning I felt the same and I returned my M9. Two days later I started missing it so much, I bought a new one, well knowing of this issue..For me the M9 is a great device despite this bug. I don't care what the market is saying about how the M9 is a failure. I have used all iPhones, and I can tell you that nothing compares to the built quality of the M9. Add to that the BoomSound speakers and the nice software and you have a winner..

Of course nothing is perfect, but for me, the M9 is exciting, and I feel attached to it. I hope HTC will learn from its mistakes and manage to move on to a better future.
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
:( bad news.....ok stay tuned

Sent from a beautiful HTC M9
[One (M9) Q&A, Help & Troubleshooting] talhamid:
I think, like some posters above, to put things in context.

HTC One M9 has the best looks, the most polished software (second only to stock Lollipop and miles ahead of iOS), double tap to wake, an OK-ish camera, wonderful theming capabilities, the best sound and build on the market.r Its a pleasure to use every time, just like the M8. On top of that, it is maybe the fastest real life phone.

Yes, HTC screwed up the charging and its a HUGE irritant. That said, they fixed SD810's two most pressing issues: overheating and horrible battery drain. I don't think anyone else has been able to do this.

They suffered a major setback with the SD810 and their camera module not turning out to be what they wished for. They are a small manufacturer and have very little control over components. Yet, out of all these disparate parts, they manage to create THE most cohesive, streamlined Android phone on the market.

Lets be a little patient, I am sure a software fix is on the way.
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
guys are different days that my phone charge regular after a wipe cache also if i use it while charge :good: if i have others problems report

Sent from my new HTC ONE M9, you dont update your phones? prrrr crapsung :p
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
same problem here , hope HTC will fix this with the next update .
[One (M9) Q&A, Help & Troubleshooting] davidtm0:
[MENTION=1862878]movers[/MENTION]i replied to my tweet that the 5.1 update for Sprint coming out tomorrow will address this slow charging issue :D

Sent from my HTC One M9 on Tapatalk
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
Ignore this post
[One (M9) Q&A, Help & Troubleshooting] davidtm0:
I'm afraid my question was vague, and so his answer was, too:View attachment 3386300

Sent from my HTC One M9 on Tapatalk
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
Guys confirm that the issue is gone, after a wipe cache my M9 charge fast by on also if i use it
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
You mean wipe cache from orginal htc recovery?
[One (M9) Q&A, Help & Troubleshooting] ilnessuno4691:
Yes, suggested by htc on twitter a couple weeks ago, and now charge always fast
[One (M9) Q&A, Help & Troubleshooting] mdonders:
Didn't work for me.

(Cause I couldn't wait any longer for the official fix/update, I unlocked my phone and installed Insert-Coin rom, and all is fine again now.)

Grtz mark
[One (M9) Q&A, Help & Troubleshooting] bigp951:
I flashed 2.7.401.1 firmware and with my quick charger I get a full charge in an hour.

Here is a link firmware.

EDIT- here is the link where I got the link from. http://xdaforums.com/one-m9/development/firmware-t3068243
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Just a friendly FYI, it's usually preferred to link to the post that contains the actual link rather than directly to the file or external webpage. That way the person you're providing the link to can read the post to make sure they know what they're downloading and see the instructions/warnings about using the files. For example, if someone was asking about TWRP, it would be better to link to the TWRP thread in the original dev forum rather than the twrp download page.
[One (M9) Q&A, Help & Troubleshooting] bigp951:
Sorry was in a hurry. I posted the link in my op
[One (M9) Q&A, Help & Troubleshooting] ref1ux:
I've been arguing with [MENTION=646575]htchelp[/MENTION] about this issue. They refuse to acknowledge it and keep telling me to reboot my phone. I mentioned it was rumoured that this is fixed in the 5.1 update - they replied "we do not comment on speculation or rumours" and asked me to try rebooting my phone to safe mode. This is all despite the fact that [MENTION=1941826]HTC_[/MENTION]UK has said they are working on a fix for the problem.

Very uninspiring from HTC. As someone who has spent around £2k on HTC phones over the past few years I wonder if I'll bother again.
[One (M9) Q&A, Help & Troubleshooting] petvas:
This is the answer I got from HTC_Help: [MENTION=1596583]petvas[/MENTION] We looked at the links. We'll forward this information to our Development team for review. Can we do anything else in the meantime?

https://twitter.com/HTCHelp/status/616306021330460672
[One (M9) Q&A, Help & Troubleshooting] fernandezhjr:
Most help reps are reading off of a script. This is pretty common with the help provided for most products across the board. If it is not in the script, then you are not likely to get much help, if any at all. And if it is a bug in the software that the engineers need to fix, what do honestly expect the help rep to do to fix it? 1.40 wasn't widely released and was basically for testing purposes for a 2.x release, so any issues with it are not likely "in the script". Just be patient for the now rolling out release of Lollipop 5.1, as it looks like this is fixed with it.
[One (M9) Q&A, Help & Troubleshooting] petvas:
It was widely released. Only the US didn't get this update, but the rest of the world did.
[One (M9) Q&A, Help & Troubleshooting] fernandezhjr:
I know Europe eventually got it, but I thought it was only in select markets. Well, nonetheless, with 5.1 right behind it, I don't get why they even released it. No doubt, it was more like a test build.
[One (M9) Q&A, Help & Troubleshooting] petvas:
I have no idea what HTC was thinking, but this fragmentation is driving me crazy. Why can't HTC make it so that all M9's worldwide get the same update at the same time? How difficult is that?
[One (M9) Q&A, Help & Troubleshooting] Crapshit:
Same problem here. 11 hours from 1% to 100%....
[One (M9) Q&A, Help & Troubleshooting] davidtm0:
I've noticed a change in my M9's overnight charging behavior since US Sprint 5.1 update. Using a standard 1 amp charger, it will go from ~50% to 100% in the wee hours (after around 4 - 6 hrs), but then slowly decline thereafter. (As seen in GSAM's graph.) So, I wake up to its being in the 90's% charged. Can't say I notice a lot of difference in daytime battery behavior.

Sent from Tapatalk on either my HTC One M9 or Tab4 10.1, it kinda depends
[One (M9) Q&A, Help & Troubleshooting] petvas:
That means that the issue hasn't been solved yet with the next update. This is just unacceptable.
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
guys I don't know if there was a program that causes this problem and now fixed with update or what , but the problem is completely disappeared from my phone and it's now the third day without any slow charging problem .(i'm on 1.40 update ) . it's really fast (about 1 % per minute ) even if used it from time to time while charging . anyone can confirm ?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
Charging with latest dev firmware is crazy fast even with a crummy regular charger.
[One (M9) Q&A, Help & Troubleshooting] petvas:
It is definitely a software issue but the 1.40 firmware is buggy as hell. Charging doesn't work ok and to be honest I don't know if I can wait any longer for a solution.
[One (M9) Q&A, Help & Troubleshooting] ref1ux:
My OnePlus is on eBay right now because I'm banking on this issue being fixed with the M9's 5.1 update. If it isn't.... I may have to remove the OP pronto!
[One (M9) Q&A, Help & Troubleshooting] diamond09:
So why not jump to the 2.7/2.8 firmware and rom? I think there will be no bugfixes with 1.4 any more.
[One (M9) Q&A, Help & Troubleshooting] petvas:
I am waiting for the official OTA...
[One (M9) Q&A, Help & Troubleshooting] baddevil2:
I'm on 2.8 and charging works fine here

Gesendet von meinem HTC One M9 mit Tapatalk
[One (M9) Q&A, Help & Troubleshooting] xerogee:
Any idea when the official Ota will be released?
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
the problem back again after 3 days (charged from 40 to 50 % in 3 hours) and after restart it''s charged normally . I'm on 1.40 firmware .
[One (M9) Q&A, Help & Troubleshooting] hamud.q:
I don't think HTC knows about this , they must know about this problem , but how?
[One (M9) Q&A, Help & Troubleshooting] jollywhitefoot:
2.7/8 fix the issue, so I assume they knew about it.