How does Huawei test for bad RAM/eMMC? - Nexus 6P Q&A, Help & Troubleshooting

I've always had a problem with very random reboots and my warranty expires at the end of July, so I called them to start the RMA process. I don't (believe) I have a battery issue as I have great battery life, and my phone doesn't turn off randomly. Has nothing to do with heat because I could be driving with my phone on GPS for 8 hours, and no issues.
It's so random; sometimes it wouldn't happen for a week, sometimes it would happen twice a day, that's how random it was. I did a clean factory image flash from google's developer site, and it did not help. At this point I know it's hardware related. It doesn't bother me a whole lot, however if I go to sell my phone, I don't want the next person to be like WTF a month later.
Out of curiosity, do they even have a way to test? I hope I don't get it back un-fixed...

Related

Hero crashes every now and then, how to use logfile apps to check reason?

Hi all,
my hero crashed every now and then, i'm not sure what causes this. This really annoys me, because taking out the hero battery is a hassle. It happens like this:
- hero is in sleep mode for some time
- i can't wake it up anymore, doesn't react to any hardware button input. Screen stays black.
- i can't softreset
- only taking the battery out will help out.
Now i want to know who the culprit is, and use a logfile app. My problem is following:
will the logfile app help me at all, AFTER the crash has occured and i reboot the phone? Will the logfile have entries from BEFORE the last startup, or is everything lost by rebooting my device?
Thanks,
shahpur
Shahpur, I have this problem and when I called HTC Europe they said they have never heard of this happening. You press every button and nothing happens. You don't know it's off because the screen is in sleep anyway!! And like you the only thing that gets the phone back is taking the battery out. And then it comes on again. I initially took sim and battery out when it happened, but after it's happened a few times I now know you only need to take the battery out which is a pain, because no buttons will wake the phone when it dies. They said it is probably a hardware problem and not software so a reset or upgrade of ROM will not make any difference and want about 3 or 4 weeks to repair phone, which is not even 2 months old.
Has anyone else had this problem yet? The phone just dies until you take battery out.
I've done 2 factory resets but nothing helps, and I don't want to send it back for a repair.
How often does yours do this?
hmm i would say it happens sporadically every now and then, maybe once a week or so.
But this is definetly not an hardware issue. If the OS fails to respond after getting into sleep mode, i can't imaging that this is a hardware fault which works flawlesss otherwise. I never had any problems with the hardware buttons when working with the device so i think this has to be software od OS related...i have a lot of 3rd party apps and i think it has to do with them...
I will not send my device back because:
you cant easily reproduce this bug, so i'm pretty sure that the repair center will not be able to reproduce and fix this issue. Therefore you might get the same device back, or another device which may also have any other problem like dead pixels, LED problems and so on.
Since my hero is working perfectly and has no other issues besides this annoying bug, i will wait for the next android update and hope that this will help the system get more stable...
well they said I was the only one that reported it and as I am in the UK and you are in Germany I doubt this is true. But I would be interested to hear if anyone else has reported this issue. It's really annoying, I get it every few days, and on Monday twice in one day. It's not where I am as it has happened in 3 different locations, but I don't have any 3rd party apps, or any apps downloaded, so it is not that I'm sure. Have you done the new update and had the problem since then as well as before the update?
i think i had the issue already with the old firmware, and the new firmware didn't fix it too. My device also crashed twice yesterday...
interesting to see that your device crashes without any 3rd party apps...so i think the best way to dig deeper, is to check the logfiles.
hope somebody can answer my logfile app question, so i can find out what was the last task before the device crashed.
Yep, there are no added apps on mine, yet........ So, don't worry about them, It's the phone that you and I have. But we are in the minority. I was offered a reconditioned by Orange, but I don't want a second hand phone with more problems like you say
Just as a matter of interest, what happens if you call the phone when it is in this state?
Regards,
Dave
Well it's dead/off, so answerphone......
Sorry to bump this thread, but I am also having the same issue. Did anyone manage to resolve this issue?
Me too!
I'm having the same issue and it seems to be happening more often. I have sent an email to HTC but no reply yet.
Any fixes?
Mine is a SIM free purchase from Play.com
in my case it was most definetly a 3rd party app which caused the crashes. Since i have like 40 apps installed i'm not sure anymore which one was the culprit, but it seems like i have either uninstalled the app or a recent update fixed the problems.
i didn't get any freeze for many weeks now.
HTC Reply
Got an email back from HTC advising a Hard Reset. Did this last night and no more crashes so far. Fingers crossed
I've reset mine maybe 4 times in 4 months, but I still get this problem
Any update from anyone on this little running saga of the invisible offs?

Endless Reboot Cycle

I've had the DInc since day -1 and haven't had a real problem until recently. Whenever the phone gets a little warm from 10+ minutes of straight use, the phone will reboot itself and goes into a reboot cycle. What seems to happen is the phone will overheat from use and then heat up some more from booting up. Once it gets to the home screen, it'll reboot again in an endless cycle. The cycle cannot be stopped unless the battery is pulled or the down key is held prior to it rebooting and shutting it down in the bootloader. The reboots are pretty predictable just by feeling the temperature of the phone. Using the phone while charging is a definite no-no for me. The only way I can get the phone to function again is to either let it sit for 10 minutes or put it in front of the AC for 5.
My phone was rooted and all roms seem to have the same effect. I've tried all hydra's kernels and all of them causes the problem, even the stock kernel. The only temporary fix was to use setcpu and enable the temp profile to lower the cpu to 500MHz at 36 degrees. This gave me extended use and was bearable but I really shouldn't have to do this. I've got so annoyed and reverted back to full stock/unrooted by downgrading with the official rom but the phone is STILL rebooting from overheating.
This is an obvious problem and I've already called Verizon for an RMA. I just hope it's not a widespread defect. It seems random reboots are pretty common with the DInc based on what I've read and other people's experience at work. There's about 5 of us who has the Inc at my job and all of our phones rebooted about a few minute from one another.
Has anyone had this issue? If so, did your replacement take care of it? I've read stories of people having to go thru four exchanges to finally land on a good device. How hot does your phones get from use and has it ever rebooted from the heat? It's a real bummer to be unable to play games on my phone for extended periods of time. The Droid X is looking mighty tempting right now
Same issue here
I've had the Incredible since day 1 (I actually upgraded from the original Droid, which I loved, but I wanted the faster CPU and more memory) and within the first 2 weeks, I got the random reboot issue, but it wasn't consistent and I believe that an OTA update fixed the problem (which was a general reception issue for the Triad area of NC).
However, the last couple of weeks, the phone seems possessed and reboots randomly and will keep rebooting until I pull the battery. It doesn't matter if I'm using the GPS, surfing the web, sending a text message, etc. or if I'm using the Verizon 3G network or my home Wi-Fi.
I tried testing various scenarios, soft/hard resets, removing my micro-SD card, charging the battery overnight, etc., but when the phone gets into one of its random reboot loops/cycles, there is no remedy but to pull the battery for about 5-10 minutes.
I have taken the phone 3 times to a retail Verizon store (that has a technician onsite) and they can't fix the phone (just keep doing factory "hard" resets).
I called HTC and they just told me how to hold the phone "with your fingertips and by the edges of the phone), and if I still had issues, I could ship the phone to them and they could attempt to repair it (but, then I'm without a phone for several days/weeks, which is not acceptable).
I have also called Verizon support and they finally agreed to issue me a replacement "refurb" phone (which I think is totally BS), but if I have the same issue with this replacement phone, I'm thinking of seeking legal counsel to get out of my contract and/or start a class action lawsuit against Verizon and/or HTC.
I've been a Verizon wireless customer for over 12 years with no issues with their "network", so I know it's an issue with this phone.
If the root cause is heat buildup, then to me, this would be considered a factory defect and all Incredible phones should be recalled (or the customer given the option to swapout to another phone, like the Droid X).
Besides the reboot problem, the phone has poor battery life (even more so than other smartphones), poor call quality, and poor reception.
Me Too
I have the random reboot issue as well, although I am 99.999999% it is due to heat. That said, heat could be caused by it trying desperately to secure a decent signal.
I really do not want to try to convince Verizon I have this problem, and have just been living with it.
Ive havent had that problem, but my inc overheats to 50°c sometimes. My advise, go to big red and have it replaced.
Sent from my Incredible using XDA App

battery getting hot and phone rebooting.

this is reeeealy starting to piss me off...
a little background: my first evo was random rebooting. i had to wait so long that it couldnt even turn on successfully without rebooting for a refurb. i get the refurb, and after a week realize the panel is screwed. i dont do much about it, and just deal. of course, with the refurbs, you need to keep the same battery, which is bad for me because mine had spend an entire day out of the phone in my pocket on a very hot (90 f) day.
so i install sbc and stuff, uninstall it when all the warnings and scares start coming. and all of the sudden, my phone starts rebooting again. it usually happnes when i am playing games, but sometimes when the phone is charging, it will reboot if i open an app. not good. again, i cant just rush to the sprint store cuz its not like i can drive myself, so...
anybody have any tips for a temporary (or maybe even permanent) fix for random reboots? my first step will be a battery replace...
thanks
dk
Are all the radios up to date?
yep. thanks for the reply. radios up, pri, prl, profile, hboot, caulkins newest, etc etc etc.
i'm pretty sure its a hardware problem. now any way to fix or at least make it less bad?
I have exact same issue. I am on my 4th replacement. After 2 other refurb's,( one was out of the box dead), I finally got a new one from the store. I got rid of what I found to be a faulty seidio charger. But, it just happened again...so...gettting rid of any third party chargers....
Travis

[Q] SGS4 Problem

OK, Firstly let me apologise for the length of this post.
Since mid July 2014 I have been having problems with my phone, at first it kept overheating to a point where it just wasn't comfortable in my pocket and only a reboot would calm/cool things down. This was annoying but I could deal with it. I read somewhere that this could be a battery issue so I bought a new battery. This solved it for like a day but then the problem came back.
In September the overheating stopped but has now been replaced with random switch off and signal loss.
So I decided to factory reset/flash stock firmware (or at least as stock as I can get it as I can't find 4.4.2 that hasn't been molested by 3UK) thinking that as this would take the phone to permanent safe mode effectively, but the random power offs continue. The signal loss has been corrected by only connecting to WCDMA only instead of giving the phone a choice, it still cuts out now and again but it isn't nearly as bad as before. The random power problem can be anytime, I can be just on chrome and *poof* gone, in the middle of a YT video and *poof* gone, this can also happen if the phone is on charge.
What strikes me as odd is this, sometimes I leave my videos that I have stored on SD playing all night and not once have I woken up to a black screen, and this is while on charge. The two batteries aren't part of the "bad batch" of batteries as they both have serial numbers that begin with LC.
Any Ideas short of going back to Samsung? As I can't remember where I put my proof of purchase.
Any help would be appreciated. Thanks you guys.
madinsheffield said:
OK, Firstly let me apologise for the length of this post.
Since mid July 2014 I have been having problems with my phone, at first it kept overheating to a point where it just wasn't comfortable in my pocket and only a reboot would calm/cool things down. This was annoying but I could deal with it. I read somewhere that this could be a battery issue so I bought a new battery. This solved it for like a day but then the problem came back.
In September the overheating stopped but has now been replaced with random switch off and signal loss.
So I decided to factory reset/flash stock firmware (or at least as stock as I can get it as I can't find 4.4.2 that hasn't been molested by 3UK) thinking that as this would take the phone to permanent safe mode effectively, but the random power offs continue. The signal loss has been corrected by only connecting to WCDMA only instead of giving the phone a choice, it still cuts out now and again but it isn't nearly as bad as before. The random power problem can be anytime, I can be just on chrome and *poof* gone, in the middle of a YT video and *poof* gone, this can also happen if the phone is on charge.
What strikes me as odd is this, sometimes I leave my videos that I have stored on SD playing all night and not once have I woken up to a black screen, and this is while on charge. The two batteries aren't part of the "bad batch" of batteries as they both have serial numbers that begin with LC.
Any Ideas short of going back to Samsung? As I can't remember where I put my proof of purchase.
Any help would be appreciated. Thanks you guys.
Click to expand...
Click to collapse
Hi mate,
First thing you have to do is find out who is the culprit , who is keeping your phone awake and running all the time , use an app like:
http://forum.xda-developers.com/showthread.php?t=1179809
Let it run for a few hours and check the logs...then we can start to figure out what is going on

WiFi Issue - NBD90X, Sleep/Doze cuts WiFi, Bug or RMA?

(only found one thread with this issue, from nov 2015, with zero replies: http://forum.xda-developers.com/nexus-6p/help/wifi-issue-nexus-6p-t3244411)
So, let's go.
Nexus 6P Android N Oct 5th, Build NBD90X here.
Bought on 4/10/2016, one week ago, in Germany, after Pixel announcement (too expensive).
Manufacturing date: 11/17/2015 (bit old, maybe refurbished?)
Behaviour: At first, connects normally to WiFi. Connection stable for a bit, so it is not a reoccuring "it reconnects every 60 seconds and can't hold the connection" thing, it is very different.
In following situations it drops Wifi:
- When screen goes off for more than 1-2 minutes
- when I cast something (YouTube, Twitch) to my Chromecast and the Nexus screen turns off after 60 seconds, the Cast continues, but when I wake up the phone, Youtube or the other apps say connection lost, so I can no longer control the stream. I tap "retry" but it does not work and I have to restart phone, reconnect to Chromecast and stop the cast that way. Super annoying.
- And, not often but happens: even when i scroll through Twitter, it randomly disconnects and reconnects after about 10-20 seconds.
Things I have tried:
- different APs and Networks (home, at work, at a friend's house)
- changed Wifi channel, 2.4, 5ghz, .. basically just tested every setting here at home. since problem occurs also at work and other networks, can't be the cause.
- wiped system cache, nothing
- reset network settings on phone, several times, nothing
- WPS, nothing
- under "Location", advanced, disabled the WiFi and Bluetooth scanning stuff
- switched from "always" to "only when plugged in" at "stay connected to wifi" setting. changed behavior to: not reconnecting to WiFi when woken up. Instead, it finds all networks BUT the one it remembers and should connect to. I have to turn wifi on and off, even that does not help sometimes. then I have to reboot.
- maybe some measures I even forgot about now, but basically everything ever, anywhere, recommended...
- eventually I factory reset the device on sunday, started with "set up as new device" from scratch, wasted another few hours to eventually have the same result.
I used all my data plan because "Android System" downloaded so much in the background in the first night (when it should have been in Wifi of course), have to turn cellular data off now to not pay for extra megabytes (germany..).
so I don't get any updates or push mails anymore because mobile data off and it drops Wifi all the time. this is unbearable.
Same router with my previous Desire HD, LG G3 and Nexus 5X: all with no problems.
My big question is: is this a software issue that will be resolved or do I have a defect device? I need to know fast because I have 14 days return time at my reseller and 7 are gone, 4 of them I tried to fix the problem. The old manufacturing date made me questioning the device in general. So is this software-related and will be fixed or should I RMA my device?
I also posted this on the android forums: https://code.google.com/p/android/issues/detail?id=206311 (look at the very helpful answer by the developer xD ... )
Having the exact same issue since updating to NBD90X last Wednesday. So glad I finally found someone else is having g this issue. Has to be software, right?
I made a new issue report on code.google.com (issue 224971). Please report back if you find a solution, my data plan is wrecked already.
EDIT: Wi-Fi and Bluetooth just powered off while I was browsing XDA in chrome. So it happens randomly, not just when phone is at idle. This is really bad!
the same issue after update NBD90X
Same.
Sent from my Nexus 6P using Tapatalk
I didn't face this issues. Maybe your device is defective. Return it and buy a new one.
gibrilm said:
the same issue after update NBD90X
Click to expand...
Click to collapse
Please add your experience to the code.google.com page listed above (issue 224971) so they can see it's not just one or two people.
So, any news on this issue? If it's only three people in the world, i will return my phone on monday and ask for a replacement. Still in 14days-return-policy timeframe.
Although this looks like a software issue, waaay too few people are reporting that issue to justify keeping the device.
Annoying as f'ck but better safe than sorry. Hopefully the replacement will be of a newer manufacturing date without any issues.
Firstly, this is weird lol, I bought my 6P in August of this year and my manufacturing date is exactly the same as yours.
Though I bought mine from an authorized retailer, I doubt it'd be refurbished, anyway, I did a clean flash of NBD90X and everything is working well for me. No issues whatsoever aside from the slightly crappy battery on Nougat.
---------- Post added at 06:50 PM ---------- Previous post was at 06:49 PM ----------
DocBrownie said:
So, any news on this issue? If it's only three people in the world, i will return my phone on monday and ask for a replacement. Still in 14days-return-policy timeframe.
Although this looks like a software issue, waaay too few people are reporting that issue to justify keeping the device.
Annoying as f'ck but better safe than sorry. Hopefully the replacement will be of a newer manufacturing date without any issues.
Click to expand...
Click to collapse
Did you clean flash the NBD90X factory image or take an OTA?
Hi,
I got it from a pretty big vendor here in Germany, pretty solid, 6000+ reviews with a 1,5 (1 best, 6 worst) rank at our best price comparison site. Ordered a LG G3 back in 2014 there and a Lenovo Thinkpad for my gf, everything perfect.
No, I got it, it had Marshmallow, then I had to install two security updates before it reached the "preparing for 7.0" update (20mb or sth.), then I got N and then, one day later, D90X appeared.
But I did a factory reset after having the issues.
You think I should try a clean flashing of the NBD90X? I thought I tried everything, but actually doing that didn't come up in my mind.
/edit: Did your packaging come with the papersleeve around the white plastic, where the S/N and the big P logo is printed on etc.? Cause my packaging was missing that. Only the plastic with transparent tape to hold it together. That is actually the only reason why I thought about "refurbished" because everything else looked completely new, no fingerprints, MM 6.0, etc. But it made me wary from the very beginning.
I just did it and wiped again, installed from scratch. Factory Image NBD90X... as clean as it gets.
After going through all the steps and wasting another chunck of time, it took 5 minutes until the first disconnect. While screen was on, while downloading stuff from the Play Store.
I am so annoyed by this phone, can't even tell. Two weeks of troubleshooting, nothing worked.
My connectivity just dropped dramatically. Had been on NBD90X since about 10/11. Our other does not exhibit this problem, both are almost set up the same. I then set mine up exactly like hers and still connected in kilobytes. Project Fi said they would send a refurb and I'm not excited over that. I've got 24 hrs to decide now. If it takes an hour or to to download an update that the other phone can do in a minute I guess mine is a lemon. Doc I just posted several places about this and my troubles started about the same time as yours. Also just installed the factory image and there's no improvement here.
Thanks for your report. Got myself a replacement device 10 days ago, no trouble since then. The old one went back and I got my money back.
Def something wrong with the WiFi chip or whatever.
Loving the phone now, 7.1.1 runs smooth af.
DocBrownie said:
Thanks for your report. Got myself a replacement device 10 days ago, no trouble since then. The old one went back and I got my money back.
Def something wrong with the WiFi chip or whatever.
Loving the phone now, 7.1.1 runs smooth af.
Click to expand...
Click to collapse
Cool. Glad yours works now. I went ahead and ordered the replacement, I'll scrutinize that refurbished unit when I get it. Being the weekend it won't ship `till Monday. Didn't realize how much I depended on this darn phone until mine quit working right!
Well if it helps just one, I post this.
Our power went out for `bout an hour. Later I was still frustrated with the 6P and started messing with it, damn it was fast again. Went to sites immediately, went to the playstore and tried to get an app that I had given up on getting earlier and ~10Mb was downloaded and installed in 4 or 5 seconds!!
I hadn't even tried using the phone when I was out the last couple of days. That plus the fact that my Asus OnHub was down, it probably lost it's cache. Kept the settings but damn I'm gonna unplug it for a min or two the first of each month now!
Cancelled the replacement..... nothin-to-see-here-move-along........

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