Signal loss on Note 3 (n9005) - Galaxy Note 3 Q&A, Help & Troubleshooting

Hello,
I have started having issues with my SM-n9005 device. From time to time, I've noticed that I have a pretty strange signal loss, which severely hinders me making calls or any other actions regarding data connections. The issue persists for around 2-3 minutes max until full signal is regained.
The weird issue is that there is no specific patern on which the problem occurs, but it does seem to appear more often when using mobile data for either browsing the web or just using WhatsApp, Facebook etc.
I've opened up my device's case and checked the 3g antena for any damage, but nothing like that, so I'm pretty sure it's no hardware issue.
The issue persists through any roms I use, even on the official, non-rooted rom.
Any suggestions on what can fix this issue? I was thinking it my be related to the modem and/or bootloader I'm currently running, but I thought it would be wise to pop a question before trying different fixes on my own.

Was the phone ever dropped? Problem occurs on all roms, including stock rom? If yes, then it sounds like it could be a hardware issue.

Even if the antenna isn't broken it can still come loose.
Check the. Metal connectors in both sides of the coaxial cable so they are firmly attached to main boatd and the minor "Usb board, in fact.. Remove and put back so you know it's" clicked ", in place
Skickat från min SM-N920C via Tapatalk

I've removed both ends of the cable and snapped them back in place, with no effect and the problem still persists. The problem appeared after multiple rom changes (I don't remember dropping the device in that period). I've tried switching back to those roms and even the official rom, but with no success. It seems like I'm stuck with the issue. The only good part is that it doesn't get worse and the interrupts seem to be just as rare as when the problem started.
It's just annoying that my connection when I need it the most.

Alright. I guess you have tried flashing new modem? That don't change with rom. Have you?
Skickat från min SM-N920C via Tapatalk
---------- Post added at 09:34 PM ---------- Previous post was at 09:29 PM ----------
AndreiRonaldo said:
I've removed both ends of the cable and snapped them back in place, with no effect and the problem still persists. The problem appeared after multiple rom changes (I don't remember dropping the device in that period). I've tried switching back to those roms and even the official rom, but with no success. It seems like I'm stuck with the issue. The only good part is that it doesn't get worse and the interrupts seem to be just as rare as when the problem started.
It's just annoying that my connection when I need it the most.
Click to expand...
Click to collapse
Yes, if it's not hardware failure. It's probably that you need to flash modem, almost guaranteed, have you tried that?
Skickat från min SM-N920C via Tapatalk

I flashed the most recent modem, but still the problem persists, although it seems it's at a smaller rate and the reconnection time is reduced to around 30 seconds

Correct CSC for your area /network is another usual suspect .

Related

SGS2 Official firmware Bugs

Not everyone flashes their phone, but all of us suffer from bugs.
I thought of starting an exclusive thread just for discussing the bugs present on the official SGS2 Firmware.
With the experts here, hopefully they can be clarified, resolved and become history
So, i'll start with the bugs i found.
My firmware version is I9100GDDKL1
First issue
When i get a call and answer it, the screen times out, as the proximity sensor signals it to. But often AFTER the call, and after i take the phone away from my ear to hang up, the screen does not come back again, instead it goes blank black. The call is still on as i am not able to press the end call soft button.
Pressing the home key OR the power key have no affect, it last for 10-20 seconds maybe and then it comes back on its own AFTER the person on the other side hangs up.
Any ideas? This is a sensor, or a software glitch?
Second Issue
Sometimes the phone just loses connectivity. Alot of times its within the city. Its odd, because normally others using the same network do not face this issue.
I have to then manually re-connect to the network.
What issues can these be?
Third Issue
I have noticed this twice now. Phone starts acting funny, as in no signal and does not restore it. I restart it, but when i do, the entire home screen and app drawer is gone. Its blank. All other phone functions work just fine.
I restart again a couple of times, but no luck. So i finally open the back cover, take out the battery, sim and SD Card and put them back again. After that when i switch it on again, it works just fine.
Software or Hardware problem?
This thread is a great idea i think.
My firmware version is I9100XWLP4.
I have only one issue, the same as the first issue in the op, been using this firmware for about a week now, and thats the only problem i have come accross so far.
Any insight would be appreciated.
Thanks
Jesse
My PDA is i9100XWKI4 and GB on it.
First two issues are happening with my SGS2 also, but twice in a week or thrice in a week only. I think proximity sensor have some HW issue.
For calls, even phone shows good signal, but calls are dropped, before I thought it was the problem with other end party, but realized that it is SGS2 problem.
My firmware is i9100xxlpq and I have none of these issues. Maybe you could try flashing the rom I'm using.
Sent from my GT-I9100 using xda premium
Azax said:
My firmware is i9100xxlpq and I have none of these issues. Maybe you could try flashing the rom I'm using.
Click to expand...
Click to collapse
We can solve alot of issues by simply flashing it, but i wanted to know if there is some way that we can solve them with simpler adjustments/enhancements?
Also if we conclude that something is an hardware issue, then we should just go to a service center and get it corrected, shouldn't we?
There isn't a great deal you can do about most 'problems' if you stick to stock & don't root or run custom firmware.
Short of sending it back to Samsung. Who will probably only flash the latest firmware (if there is any) if the problem isn't hardware related. Which you could easily do yourself.
Rooting/running custom firmware gives you the ability to solve problems that otherwise wouldn't be fixable (and definitely produces problems that otherwise wouldn't happen as well sometimes obviously).
I don't disagree with you that rooting/ flashing custom roms will solve most software issues or atleast lead a way to solving them.
All i am saying is, that is there a way to solve some of these problems otherwise.
Also we can find out if our phone has an hardware issue, because if some problem is too uncommon, then it probably IS isolated and can be a hardware fault.
I think all do update their firmware. I Infact changed to the latest one recently, but it didn't do any good.
I am not against flashing man .
Just keeping it as a last resort.
sk1989 said:
I don't disagree with you that rooting/ flashing custom roms will solve most software issues or atleast lead a way to solving them.
All i am saying is, that is there a way to solve some of these problems otherwise.
Also we can find out if our phone has an hardware issue, because if some problem is too uncommon, then it probably IS isolated and can be a hardware fault.
ICS BUGS thread search please we dont need another one .
Hardware is relatively simple if you do not have a problem on GB firmware then it is not hardware .
jje
Click to expand...
Click to collapse
This is not for ICS alone.
You mean to say there can be NO hardware fault at all?

[BUG] Other person can't her me mid-call, mic gets muted

Hi,
in the last days with my S3 on every call I had which went for more than 1 minute the other person suddenly couldn't hear me anymore. Sometimes it happened after a minute, sometimes after 3 minutes, but in the last 4 calls it happened every time!
Reception came back after some seconds and from then on it was really bad, the other person had hard problems understanding me.
I searched around and found this thread of GNex owners having the same problem:
http://androidforums.com/samsung-galaxy-nexus/472451-vzw-other-person-cant-hear-me.html
Then I found it in the Issues DB too
http://code.google.com/p/android/issues/detail?id=24019
Do you guys know more? it is really bad, since this is my business phone so nearly every call is an important one and it really bugs me out.
Anyone having same problems?
I hope someone can help me out.
Yes I have the exact problem. It's driving me nuts and I've tried different roms and kernels.
Sent from my GT-I9300
Have you tried to DISable the noise canceling feature?
No but I will try it and report back.
By the way I'm on stock LF6 4.0.4 in Germany (with o2 as my carrier. Unbranded. )
Is the noise canceletion buggy?
Sent from my GT-I9300 using xda app-developers app
I've read that some kernels cause issues like this.
Also, in UK, in Birmingham on Orange, I have been having issues like this, and it usually occurs when the Signal Switches over from Orange to T-Mobile, mid call, and once onto T-Mobile signal, the call breaks up or goes quiet.
Maybe an issue switching from 2G to 3G or back mid call also?
BobFL said:
Have you tried to DISable the noise canceling feature?
Click to expand...
Click to collapse
Will try also. The only reason I haven't got rid of this phone is it mostly happens on o2 calls, I am on giffgaff which is run by o2, The op is o2! Hmmm
Sent from my GT-I9300 using xda app-developers app
just yesterday I again had the issue....and my noice cancelling was off...so this is not causing it....
I'm bumping this in hope someone has a cure.
The new rom LFB is not yet published for Germany but for UK. Perhaps it makes a difference? Can somebody in UK with LFB who previously had the issue please check?
Same problem, no solution
I'm facing the same issue. Tried searching for any possible explanations, but haven't found anything conclusive.
I've tried disabling and enabling noise cancellation and all combinations of the in-call options.
There are 2 or 3 main theories which I've encountered:
1. The microphone goes to sleep when the phone display does. As soon as someone seems to not able to hear me, I move the phone away and the screen wakes up. This seems to sort it out temporarily.
2. Someone had posted on FixYa indicating that they tried putting a small piece of cotton after removing the back panel just behind where the mic is. Haven't tried this!
3. Everyone else seems to think that a factory reset would set it right. I haven't tried this as I need to find a bit of time to do this.
Also, I'm wondering if flashing to CM9's RC1 or 2 will sort out the issue. I'm thinking that it has to be a software glitch. In fact, someone reported that they solved it this way (can't remember where).
the-0ne said:
I'm facing the same issue. Tried searching for any possible explanations, but haven't found anything conclusive.
I've tried disabling and enabling noise cancellation and all combinations of the in-call options.
There are 2 or 3 main theories which I've encountered:
1. The microphone goes to sleep when the phone display does. As soon as someone seems to not able to hear me, I move the phone away and the screen wakes up. This seems to sort it out temporarily.
2. Someone had posted on FixYa indicating that they tried putting a small piece of cotton after removing the back panel just behind where the mic is. Haven't tried this!
3. Everyone else seems to think that a factory reset would set it right. I haven't tried this as I need to find a bit of time to do this.
Also, I'm wondering if flashing to CM9's RC1 or 2 will sort out the issue. I'm thinking that it has to be a software glitch. In fact, someone reported that they solved it this way (can't remember where).
Click to expand...
Click to collapse
Which ROM are you using right now?
Ihad the same issue on CM9 and got rid of it by flashing another radio. I originally had the xxlef, tried the xxlfb and ended up with the xxlf5 which works fine so far.
Try this for a fix
goto settings
sound
Toggle on then off or off then on the screen lock sounds then try again :good:
the-0ne said:
Also, I'm wondering if flashing to CM9's RC1 or 2 will sort out the issue. I'm thinking that it has to be a software glitch. In fact, someone reported that they solved it this way (can't remember where).
Click to expand...
Click to collapse
Hey,
just so you know. I am on CM9 and I have kind of the same issue. Sometimes audio is unidirectional, both ways actually, unable to recreate it so far. What always seems to work is my bluetooth headset. Switiching between the two of them makes me lose audio entirely. I have tried many things, even rebooting the phone Sometimes it helps, sometimes it doesn't. I'm guessing it has something to do with BT.
I am NOT facing the issue with losing audio in the middle of the call when the display goes to sleep. The display goes to sleep because of the ligth sensor, btw. - not because the system is idling The display is not needed once the phone realizes it's attached to your ear (lights off).
It's driving me nuts
BUT: CM9 is amazing so far. It's fast, it's open, everything works just fine. Except for the phone as a phone of course
change modem
Oomahey said:
Which ROM are you using right now?
Click to expand...
Click to collapse
Using Stock right now. OTA updates till Jun 26th.
badaeng said:
Ihad the same issue on CM9 and got rid of it by flashing another radio. I originally had the xxlef, tried the xxlfb and ended up with the xxlf5 which works fine so far.
Click to expand...
Click to collapse
Mine's currently DDLF3
winwiz said:
Toggle on then off or off then off the screen lock sounds then try again
Click to expand...
Click to collapse
I've just tried this, will report back. How do you think lock sounds affect the mic, though?
avetny said:
change modem
Click to expand...
Click to collapse
Does CM9 come with an integrated modem switcher? I don't like messing around with "packages" too much. The more you mod everything, the less stuff has got to do with each other and it is more likely to run into trouble, because as a developer you can't really consider every side effect
So if this is actually about the modem (which I doubt, because the connection is just fine, it's just the audio output and input that is kind of broken) - what modem would I use with CM9? Can I just flash a random one over the current one?
Appreciate the advice.
Andreas
I notice that as soon as I take the phone away from my ear and the screen lights up I can again be heard... Wonder if there's a problem with the light off sensor affecting the mics too... It ALWAYS goes away when I remove the phone from my ear and the light sensor allows the backlight to come on again...
Might be a crazy thought but the evidence does seem to support this. I haven't turned off the light sensor in settings yet, if I even can, but was going to try next call...
I updated to BLG8 and I will see tomorrow if it happens again. Today I already had one call which lasted 11 minutes without interruptions. I will report as soon as I got more calls to test.
I had the same prob...
I just reflashed the official firmware frm the service centre.
Sent from my GT-I9300 using xda app-developers app
Same problem here. Tried several roms, kernels and modems. Only one working for me is Checkrom v3 with xxlbf... but here also after a while some calls it reappears... I reflash modem and I am set for the next couple calls... then again
Ps: i am from Romania on Vodafone
Sent from my GT-I9300 using xda premium
I'm the OP and I now didnt had the problem for 2 months with the last stock ICS build.
It seems to be resolved.
I'm now on JB since today (XXDLIH) and will report if it comes back.

Anyone else experiencing touchscreen issues while charging?

The strangest thing just happened to me. While I was charging my OPT it failed to register my fingerprint. Upon asking me for my pin, the touchscreen acted very erratic, and after 5 seconds stopped working completely. The moment I disconnect the charge cable everything works fine!
If my calc or any other app is open it also registers a lot of touches without touching the screen. It's nothing you can replicate. Kinda spooky actually lol.
I've tried a couple of things already, rebooted, killed most apps, checked the charge cable (original) and port but to no avail.
I have the US version and am on the latest stock ota, but rooted. I'm about to do a restore and after that clean install if necessary. I just wanna check if anyone experienced this before.
I will lost back if I get to the bottom of this. Hopefully it's not the hardware.
xzces said:
The strangest thing just happened to me. While I was charging my OPT it failed to register my fingerprint. Upon asking me for my pin, the touchscreen acted very erratic, and after 5 seconds stopped working completely. The moment I disconnect the charge cable everything works fine!
If my calc or any other app is open it also registers a lot of touches without touching the screen. It's nothing you can replicate. Kinda spooky actually lol.
I've tried a couple of things already, rebooted, killed most apps, checked the charge cable (original) and port but to no avail.
I have the US version and am on the latest stock ota, but rooted. I'm about to do a restore and after that clean install if necessary. I just wanna check if anyone experienced this before.
I will lost back if I get to the bottom of this. Hopefully it's not the hardware.
Click to expand...
Click to collapse
Does not happen so often on my OP2 but it happened a lot on my Nexus 4. This is a known issue with many devices but nothing you should worry about.
burnoutslo said:
Does not happen so often on my OP2 but it happened a lot on my Nexus 4. This is a known issue with many devices but nothing you should worry about.
Click to expand...
Click to collapse
Thats not great news burnoutslo! It's pretty annoying that you can't use your phone while charging. I've noticed that once it reaches 100% everything's ok again so it definitely seems software related, probably android if other devices have the same problems. I will do a nand restore back to the previous oxygen version over the weekend. Hopefully it solves my problems.
xzces said:
Thats not great news burnoutslo! It's pretty annoying that you can't use your phone while charging. I've noticed that once it reaches 100% everything's ok again so it definitely seems software related, probably android if other devices have the same problems. I will do a nand restore back to the previous oxygen version over the weekend. Hopefully it solves my problems.
Click to expand...
Click to collapse
I observed same thing yesterday,
The whole scenario was-
Yesterday when my battery gone below 15% i ran for the charger and plugged in and after that i started using phone and i noticed that my touchscreen becomes less responsive.
Difficulty in swiping between home screen, opening of apps during swiping.
So the solution i found that if i stand on the ground barefooted then only i am having this problem, when i put slippers on then its perfectly fine.
So may be it is some kind of grounding issue.
same here; issues sometimes when charging; I didn't see the differences between sleeper and barefoot but I also think it's a ground problem...
afarnedi said:
same here; issues sometimes when charging; I didn't see the differences between sleeper and barefoot but I also think it's a ground problem...
Click to expand...
Click to collapse
sushant6786 said:
I observed same thing yesterday,
The whole scenario was-
Yesterday when my battery gone below 15% i ran for the charger and plugged in and after that i started using phone and i noticed that my touchscreen becomes less responsive.
Difficulty in swiping between home screen, opening of apps during swiping.
So the solution i found that if i stand on the ground barefooted then only i am having this problem, when i put slippers on then its perfectly fine.
So may be it is some kind of grounding issue.
Click to expand...
Click to collapse
xzces said:
The strangest thing just happened to me. While I was charging my OPT it failed to register my fingerprint. Upon asking me for my pin, the touchscreen acted very erratic, and after 5 seconds stopped working completely. The moment I disconnect the charge cable everything works fine!
If my calc or any other app is open it also registers a lot of touches without touching the screen. It's nothing you can replicate. Kinda spooky actually lol.
I've tried a couple of things already, rebooted, killed most apps, checked the charge cable (original) and port but to no avail.
I have the US version and am on the latest stock ota, but rooted. I'm about to do a restore and after that clean install if necessary. I just wanna check if anyone experienced this before.
I will lost back if I get to the bottom of this. Hopefully it's not the hardware.
Click to expand...
Click to collapse
I had once this issue on cm12.1 oneplus 2 . What I did to solve this problem successfully.
1. I removed case from my phone . This causes grounding issues sometimes.
2. Reflashed OxygenOS.
3. Then I flashed cm on top of it. Wiped data, cache, dalvik only. didn't wiped system partition.
4. That's it. I'm. I'm typing right now while charging. Totally perfect.
I noticed it more with my cheaper USB C cables.
I bought a half dozen and some are better than others.
the boxed cable that was stock is the best by far.
Yesterday i aux in my phone to a audio player and observed the same problem again with touchscreen. Feeling very annoyed because of this and other bugs.
My phone used to lock up completely for up to 30 seconds after plugging in the charger. After move to cyanogenmod 13 this does not happen anymore, so obviously a bug in OxygenOS.
Skickat från min ONE A2003 via Tapatalk
Hmm, this is generally not a problem with your phone or your software, but relates to the power supply. Noise in the power or grounding issues specifically cause the 'ghost touches' and erratic behaviour you describe. If you are lucky, your charger and cable are also fine and the issue is with the power socket, in which case you need an electrician to come and take a look. If its the charger/cable, then simply get a new one and you are good to go.
To figure out where the issue is, start by using the same charger + cable in a different location (completely different physical location). If the problem persists, then try changing the cable in that same location. If it still persists, try a different charger.
If the problem is NOT there at the alternate location, then chances are its your wiring and you need an electrician to sort this out for you.

Anybody else experiencing random reboots?

Got my 128 GB OP5 last night and it has been randomly rebooting on me while doing random things. I am trying to figure out a root cause and factory reset the phone again to see if I could figure it out as well but it seems to happen from doing anything as simple as pulling down the notification bar to activating Google assistant or just scrolling through my settings. Nothing seems to be repeatable as it happens intermittently. Wondering if anyone else has dealt with this and may have figured out what caused it otherwise I guess I'd have to order a replacement
No, works fine here.
i dont have OP5 yet so no reboots
No reboot until now but i can't pair any bluetooth device (Sony Smartwatch 3 and Jabra Motion Headset)
Mine hasn't done it yet but the wifi performance is abysmal, random pauses when transferring files, Facebook stopped while trying to set it up.
I have been using the phone since yesterday morning and haven't had any issues at all, not a single bit of lag, no apps crashing or anything. If a reset didn't help it that means it must be hardware problem. I would return it and get a replacement.
Yes, performance seems bad. Had a few reboots and WiFi download speeds are awful.
SirBaal said:
No reboot until now but i can't pair any bluetooth device (Sony Smartwatch 3 and Jabra Motion Headset)
Click to expand...
Click to collapse
I've successfully paired a bluetooth keyboard with trackpad and a Wahoo Tickr HRM and both seem to work fine. The Wahoo seemed more difficult to connect but that may have been just operator error. I've not had any lock ups/reboots at all but haven't had the OP5 24 hours yet.
---------- Post added at 11:05 AM ---------- Previous post was at 11:01 AM ----------
djsubterrain said:
... the wifi performance is abysmal, random pauses when transferring files....
Click to expand...
Click to collapse
Quite the opposite for me as the WiFi is stellar and the 5Ghz speeds far outstrip the Nexus 5 this OP5 has replaced.
Haven't had any such issue on mine yet in Canada (8GB/128GB) *fingers crossed*
---------- Post added at 04:23 PM ---------- Previous post was at 04:21 PM ----------
3DSammy said:
I've successfully paired a bluetooth keyboard with trackpad and a Wahoo Tickr HRM and both seem to work fine. The Wahoo seemed more difficult to connect but that may have been just operator error. I've not had any lock ups/reboots at all but haven't had the OP5 24 hours yet.
Quite the opposite for me as the WiFi is stellar and the 5Ghz speeds far outstrip the Nexus 5 this OP5 has replaced.
Click to expand...
Click to collapse
I've had the same as you -- Bluetooth Pebble & Car & Headphones have all worked amazing (including using AptX HD), and my WiFi speeds have been stellar (>50MBps download (Yes, MBps, not mbps)). My WiFi has not been cutting out in the corners of my house either, unlike my old phones and even laptop!
HAK Devil said:
Got my 128 GB OP5 last night and it has been randomly rebooting on me while doing random things. I am trying to figure out a root cause and factory reset the phone again to see if I could figure it out as well but it seems to happen from doing anything as simple as pulling down the notification bar to activating Google assistant or just scrolling through my settings. Nothing seems to be repeatable as it happens intermittently. Wondering if anyone else has dealt with this and may have figured out what caused it otherwise I guess I'd have to order a replacement
Click to expand...
Click to collapse
Yes, it's an issue for me. I've been in touch with OP Bug Hunter staff, and gave them the logs they requested to pass along to engineering to figure out why.
Yeah it kept rebooting on me even today so just got off the phone with OnePlus and an RMA has been created for a replacement device to be sent. Hopefully the next one isn't a problem, I'll keep you guys posted on the progress.
Umm had phone since Sunday not had any issues but today while on a call the phone rebooted it's self and again 20 minutes later just on home screen , I'm stock latest build , bought from O2 store should I take it back and ask for replacement while within my 14 days ??
Sent from my ONEPLUS A5000 using Tapatalk
Mines fine no issues build date 13th June
My phone is back with oneplus now so according to them should have a new one within the next week. Good thing I didn't sell my oneplus 3 just yet
I had two random reboots today and one random shutdown.
All these happened in my pocket and i realized the reboots due to vibration from reboot.
And one time I pulled it out of my pocket it was turned off.
Hi,
Got my phone Yesterday.
Started seeing random reboots today. Running latest version. I also did an factory reset of the device after I upgraded to latest version..
Any way I can troubleshoot this? Could an app be causing something like this? I do suspect that this started after installing Snapchat.. But I'm not sure..
/Jo Christian
jochr said:
Hi,
Got my phone Yesterday.
Started seeing random reboots today. Running latest version. I also did an factory reset of the device after I upgraded to latest version..
Any way I can troubleshoot this? Could an app be causing something like this? I do suspect that this started after installing Snapchat.. But I'm not sure..
/Jo Christian
Click to expand...
Click to collapse
Mine is same did it in a call also just in pocket can tell as when i open the flip case it asks for my pin , also toggleing airplane mode off in the morning I have no service till I reboot device my build date 6/6 on latest stock no root ,
I'm currently as I type on my way to local O2 store to exchange it for another so hopefully new one will be ok as only got it Sunday just gone , I would RMA it if I was you , will report back on my new one ?
Sent from my ONEPLUS A5000 using Tapatalk
Yes mine started this after the latest update.
Sent from my HTC U11 using Tapatalk
I'm getting random reboots about every other day or so. Would this be indicative of a software issue versus hardware? I figure if this many people are having issues, but many are not, the hardware may not be a problem? This is my first OP device, so I'm just guessing. Hoping if it IS a software issue they can release an update soon!
DoobyDroid said:
Mine is same did it in a call also just in pocket can tell as when i open the flip case it asks for my pin , also toggleing airplane mode off in the morning I have no service till I reboot device my build date 6/6 on latest stock no root ,
I'm currently as I type on my way to local O2 store to exchange it for another so hopefully new one will be ok as only got it Sunday just gone , I would RMA it if I was you , will report back on my new one ?
Sent from my ONEPLUS A5000 using Tapatalk
Click to expand...
Click to collapse
Just got back from O2 store replaced with new device although it's the same manufacture date as one with issue 6/6/17 so far ok but it's only been on couple hrs so to soon to say, I'm convinced it was since 4.5.3 update as didn't do it before update but while i was in my 14 day return thought replace it anyway , I did contact 1+ before hand to ask if it's software or hardware all I got in reply was !! We will need proof of purchase to continue replacement procedure , that made alarm bells ring so hence straight back to O2 as it's far quicker than retuning to 1+ , I'm currently on 4.5.0 and not keen on updating ?
Sent from my ONEPLUS A5000 using Tapatalk

leeco pro 3 x727 shuts down after few minutes

This happens only when I install any custom rom...the phone works fine with x720 5.8.018s version...anything apart from that device will shut down every 2-3 minutes ...very strange behaviour ...any one has any idea ?
any custom rom , android 6 or 7 , AOSP or stock based, it will boot fine and after initial setup , it will work for 3-4 minutes and then suddenly device shuts down. .. when i boot it up again , same thing happens, in one minute shuts down.
if i flash 5.8.018s stock rom , everything works fine....and it doesnt shut down...
After device bugs, my phone finally was restored into x720 stock ROM (i have x720). On boot it worked below 1 minute and reboots. I had to do clean data. Also booting x720 ROM into x727 is not too good idea. Maybe you should try to do more wipes?
marik1 said:
After device bugs, my phone finally was restored into x720 stock ROM (i have x720). On boot it worked below 1 minute and reboots. I had to do clean data. Also booting x720 ROM into x727 is not too good idea. Maybe you should try to do more wipes?
Click to expand...
Click to collapse
I did all the wipes i could , cleaned all kinds of data... it was US version 5.8.018s originally and i tried to flash Omni ROm first , and other ROMS , all had same issues, so i thought going back to the stock US rom , but since US version of 018s is not available anywhere, i went to chinese version , and it works perfectly , no reboot/shutdown...... I have used number of phones and installed 100s of ROMS , i have never faced soemthing like this...i hve even used leeco pro 3 before, with all custom roms and no problems.
Manan79 said:
I did all the wipes i could , cleaned all kinds of data... it was US version 5.8.018s originally and i tried to flash Omni ROm first , and other ROMS , all had same issues, so i thought going back to the stock US rom , but since US version of 018s is not available anywhere, i went to chinese version , and it works perfectly , no reboot/shutdown...... I have used number of phones and installed 100s of ROMS , i have never faced soemthing like this...i hve even used leeco pro 3 before, with all custom roms and no problems.
Click to expand...
Click to collapse
Ok update...i downloaded x720 021S and 023S and updated using in build update option..(local update) , and it worked, 23S is working without any shut down...so i guess, it is problem only with roms flashed thru TWRP
Manan79 said:
Ok update...i downloaded x720 021S and 023S and updated using in build update option..(local update) , and it worked, 23S is working without any shut down...so i guess, it is problem only with roms flashed thru TWRP
Click to expand...
Click to collapse
Usefull information, thank you very much.
Nearly the same problem here: My X720 is only rebooting sometimes, but more often switching off directly (vibrates one time and switches off). While the phone is in that status, the battery is discharging. I can only reboot the phone by holding the power button for about 10sec or to TWRP. Two times I was rebooting the phone and some (not all) settings were restored to default - reflashed the rom... Another time rebooting the phone it hangs in the booting display, did not get it booted completely again - reflashed the rom.... Very strange behaviour and don't know why this happens.
But for about the last month, the phone is only switching off and I can reboot and use it for an unspecific time.
That all happens with several ROMs - currently I'm on ResurrectionRemix 5.8.5. This is the most stable custom rom I have tested, but anyways the phone switches off in irregular periods. Sometimes the phone is about a day alive, sometimes only a few hours, sometimes below an hour. When I'm playing HQ games I think the phones switches off much faster, but not sure.
I'm also not sure - I do not have used the stock rom really long after I get this phone (was CN 5.8.018s I think) - but my feeling is, that the phone was definetely more stable with the stock rom.
Now after finding this thread, I will give the stock rom another try. Would you be so kind as to describe the process of going to the stock 023S a bit more in detail? First flashing the 5.9.021S for the x720 ROM throught TWRP and after that using the build in update option (rename file to update.zip into root folder)?
Thanks!
peed_neslo said:
Usefull information, thank you very much.
Nearly the same problem here: My X720 is only rebooting sometimes, but more often switching off directly (vibrates one time and switches off). While the phone is in that status, the battery is discharging. I can only reboot the phone by holding the power button for about 10sec or to TWRP. Two times I was rebooting the phone and some (not all) settings were restored to default - reflashed the rom... Another time rebooting the phone it hangs in the booting display, did not get it booted completely again - reflashed the rom.... Very strange behaviour and don't know why this happens.
But for about the last month, the phone is only switching off and I can reboot and use it for an unspecific time.
That all happens with several ROMs - currently I'm on ResurrectionRemix 5.8.5. This is the most stable custom rom I have tested, but anyways the phone switches off in irregular periods. Sometimes the phone is about a day alive, sometimes only a few hours, sometimes below an hour. When I'm playing HQ games I think the phones switches off much faster, but not sure.
I'm also not sure - I do not have used the stock rom really long after I get this phone (was CN 5.8.018s I think) - but my feeling is, that the phone was definetely more stable with the stock rom.
Now after finding this thread, I will give the stock rom another try. Would you be so kind as to describe the process of going to the stock 023S a bit more in detail? First flashing the 5.9.021S for the x720 ROM throught TWRP and after that using the build in update option (rename file to update.zip into root folder)?
Thanks!
Click to expand...
Click to collapse
On my equipment too !!
Andresdsr said:
On my equipment too !!
Click to expand...
Click to collapse
You do not flash a 21s update twrp that may brick you.
You have to go stock and flash with stock recovery.
Their threads already on this.
Sent from my LEX727 using xda premium
mchlbenner said:
You do not flash a 21s update twrp that may brick you.
You have to go stock and flash with stock recovery.
Their threads already on this.
Sent from my LEX727 using xda premium
Click to expand...
Click to collapse
it was the same with the ROM that came from the factory.
I experienced 21s and 23s beta Tars, 23s original Chinese...
Andresdsr said:
it was the same with the ROM that came from the factory.
I experienced 21s and 23s beta Tars, 23s original Chinese...
Click to expand...
Click to collapse
Does anyone completely solved the shutting down issue on x720? I remember the same issue with the stock rom when i was getting the phone (5.8.018). but this rom could have been a shop rom, cant remember.
For me it seems that the issue happens more often whenever the phone uses more performance. Playing HQ games let the phone shut down after about 1-3min. doing nothing on the phone, it remains for about a day. Weird behaviour... will try to flash the stock recovery via fastboot and then a stock rom (no shop rom). hopefully it will improve the behaviour or even better solving the issue.
Sounds like a hardware issue. As for me, I have a couple of screen issues--I usually have my LeEco Pro3 Elite connected to a charger, and I sometimes don't use it for long stretches of time (say, 8 hours) because I have another phone as well. Once in a while, during those times the screen refuses to turn on. Sometimes the fingerprint scanner wakes it up, other times I have to straight up reboot the phone using the power button (I have to keep it pressed for two whole minutes for it to wake up the phone). Pretty annoying, dunno why it's happening. Could be a loose screen cable.
Now, if your phone is shutting down every few minutes no matter what, it could be a battery issue. I say this because I had a similar issue with an old iPod Color from 2005. The iPod would shut off every few minutes even when plugged into a charger. I changed the battery and it stopped shutting down.
Hopefully it's not a motherboard issue because replacing a phone's motherboard is never easy.
For me it seems that the issue happens more often whenever the phone uses more performance. Playing HQ games let the phone shut down after about 1-3min. doing nothing on the phone, it remains for about a day. Weird behaviour... will try to flash the stock recovery via fastboot and then a stock rom (no shop rom). hopefully it will improve the behaviour or even better solving the issue.
Click to expand...
Click to collapse
I don't think gameplay should affect the phone negatively at all. Especially a phone with a Snapdragon 821, a 14nm processor with efficient cores, for crying out loud. I play Fate Grand Order, a pretty intense 2D online game with 1080p graphics for 5 hours straight on my LeEco Pro3 Elite (Snapdragon 820) without it heating up at all.
Again, seems like a hardware issue because no phone with a Snapdragon 821 or 820 should be doing that. Especially while gaming.
sk8223 said:
Sounds like a hardware issue. As for me, I have a couple of screen issues--I usually have my LeEco Pro3 Elite connected to a charger, and I sometimes don't use it for long stretches of time (say, 8 hours) because I have another phone as well. Once in a while, during those times the screen refuses to turn on. Sometimes the fingerprint scanner wakes it up, other times I have to straight up reboot the phone using the power button (I have to keep it pressed for two whole minutes for it to wake up the phone). Pretty annoying, dunno why it's happening. Could be a loose screen cable.
Now, if your phone is shutting down every few minutes no matter what, it could be a battery issue. I say this because I had a similar issue with an old iPod Color from 2005. The iPod would shut off every few minutes even when plugged into a charger. I changed the battery and it stopped shutting down.
Hopefully it's not a motherboard issue because replacing a phone's motherboard is never easy.
I don't think gameplay should affect the phone negatively at all. Especially a phone with a Snapdragon 821, a 14nm processor with efficient cores, for crying out loud. I play Fate Grand Order, a pretty intense 2D online game with 1080p graphics for 5 hours straight on my LeEco Pro3 Elite (Snapdragon 820) without it heating up at all.
Again, seems like a hardware issue because no phone with a Snapdragon 821 or 820 should be doing that. Especially while gaming.
Click to expand...
Click to collapse
Thanks for the information.
Could be possible... If I'm shaking the phone like a cocktail-mixer, it feels something loose inside it and this could be the battery of course which could be not fixed correctly. But I am sure, that this issue has also something to do what is happening on the phone currently. Sometimes I am going to bed and the phone does not move for 8hrs, it simply lays on the table. In the morning, it is shutted down. Need to hold the power button for about 10sec to restart the phone (usually hold 2sec to power on). Sometimes (not really often) it warm-starts automatically.
I think this could be also a memory issue or internal storage. Yesterday I was playing a game (Bowling by Jason Belmonte) and after 3min, the phone hung up, display remains on, no reaction on pressing the hardware buttons, waiting 5min... nothing happens. So I pressed the power button 10sec, phone seems to reboot normally, but it take a bit more time in my oppinion. Now after entering the pin, some phone configurations were resetted to default, but not all. Playing this came, it sometimes happened, that the phone switches off (with one vibration). Rebooting with a 10sec press and it runs again normally. This time phone hung up and some configurations were resetted to default. WTF?
Today I have played Hmmsim 2. Phone hung up again, pressing the power button 10sec, phone begins to reboot, but rebooting never finished (waiting for about 1-2hrs). Long Press power button (10sec) to try to reboot again - same behaviour, never ending ROM loading screen. Wiped to factory via TWRP and the phone reboots again, but all configurations lost, like freshly installed rom. OK, whatever, using the google backup for apps and so on... when installing the apps in the background, the phone reboots about 3-4 times, app installations not finished. Cancelled and shutting the phone down to TWRP, where I am now...
What I will try to say is, that whenever the storage or memory is used to much or something like that, the phone begins with that behaviour.
And now I am thining about what to try next. I think I will try to flash the stock recovery via TOOL ALL IN ONE then flashing a stock rom like 5.9.023S.
I am still not sure of a hardware issue...
peed_neslo said:
I am still not sure of a hardware issue...
Click to expand...
Click to collapse
The easiest way to tell is if the issues were occurring before you flashed TWRP. Were they? This is why you always wait a couple of months before modding your device. Otherwise you'll be stuck in a loop of doubts. By this I mean you'll be convinced that the issue has to do with your custom ROM or kernel rather than your device's hardware, but you have no way of knowing for sure because you never used the phone enough on stock firmware.
I was like you... my unmodified Zenfone 3 had a screen flicker issue and a headphone jack issue that I was convinced was a Nougat problem. I upgraded from Marshmallow to Nougat immediately after getting the phone. After a lot of research and posting threads on the Zenfone forums, I realized I had a hardware issue on my hands. The screen had to be replaced for the flickering to stop, and the headphone jack had been gimped to 0.3v by ASUS for some reason. I quickly sold the phone and got my LeEco.
Here's a thread I made on XDA about my screen flickering issue. It's a hardware issue: https://forum.xda-developers.com/zenfone-3/help/ze552kl-screen-flickering-lowest-t3660643
I've learned some important things from that experience: it's easy for your brain to trick you into thinking you've got an easy-to-solve software issue on your hands, when in reality you've got a hardware issue. You need to start making arrangements for a replacement device and get video evidence of your problems to show to the seller ASAP. Because that behaviour isn't normal. Now I hope you do have a software issue on your hands that the stock firmware will solve, but who knows. Be prepared for anything.
sk8223 said:
The easiest way to tell is if the issues were occurring before you flashed TWRP. Were they? This is why you always wait a couple of months before modding your device. Otherwise you'll be stuck in a loop of doubts. By this I mean you'll be convinced that the issue has to do with your custom ROM or kernel rather than your device's hardware, but you have no way of knowing for sure because you never used the phone enough on stock firmware.
I was like you... my unmodified Zenfone 3 had a screen flicker issue and a headphone jack issue that I was convinced was a Nougat problem. I upgraded from Marshmallow to Nougat immediately after getting the phone. After a lot of research and posting threads on the Zenfone forums, I realized I had a hardware issue on my hands. The screen had to be replaced for the flickering to stop, and the headphone jack had been gimped to 0.3v by ASUS for some reason. I quickly sold the phone and got my LeEco.
Here's a thread I made on XDA about my screen flickering issue. It's a hardware issue: https://forum.xda-developers.com/zenfone-3/help/ze552kl-screen-flickering-lowest-t3660643
I've learned some important things from that experience: it's easy for your brain to trick you into thinking you've got an easy-to-solve software issue on your hands, when in reality you've got a hardware issue. You need to start making arrangements for a replacement device and get video evidence of your problems to show to the seller ASAP. Because that behaviour isn't normal. Now I hope you do have a software issue on your hands that the stock firmware will solve, but who knows. Be prepared for anything.
Click to expand...
Click to collapse
Thank you very much!
I am sure that the phone was doing the same on stock rom, but maybe fewer times. I have flashed a stock based rom now (Turbos mini 5.9.023s) and the issue still exists, but now the phone reboots normally more often than going into edl mode (emergency mode). I have found an old thread here on XDA and the issues described there sounds nearly the same. Finally the user in this thread also had hardware issue.
I believe also in a hardware issue, but I am still not sure. If I am looking to other threads regarding similar problems, there is always some regularity in the behaviour or the reported issues. In my case these rebootings (usual reboot or reboot to EDL mode) are definetely very unregular. On the TURBO Rom, these reboots happen definetely more often when the display is off and the phone sleeps. On the TURBO Rom, playing games seems to be helping lasting the phone a bit longer, the completely differnce to ResurrectionRemix Rom, where the phone was lasting longer when doing preferabely nothing. The issues are so inconsistant and this is making it hard to believe, that this is a hardware issue. Why the hell is the phone behaving different on every ROM - if it's a hardware issue, the occurred problems should have some regularity.
As I didn't have an OTA update option on the stock rom, I'd found out that this could be a "shop rom" (5.8.018), which is not the best choice nor for the first month(s).
I'm from Germany and I do not really want to return the phone to china or east asia for repairing (bought at banggood). This could take a very very long time. Changing to a new one could be also difficult because there are hardly any more devices out on the market and I need to return it for the change too.
But I am slowly at my wit's end and before these issues are making me more and more crazy, I will accept a problem with the hardware.
peed_neslo said:
I believe also in a hardware issue, but I am still not sure. If I am looking to other threads regarding similar problems, there is always some regularity in the behaviour or the reported issues. In my case these rebootings (usual reboot or reboot to EDL mode) are definetely very unregular. On the TURBO Rom, these reboots happen definetely more often when the display is off and the phone sleeps. On the TURBO Rom, playing games seems to be helping lasting the phone a bit longer, the completely differnce to ResurrectionRemix Rom, where the phone was lasting longer when doing preferabely nothing. The issues are so inconsistant and this is making it hard to believe, that this is a hardware issue. Why the hell is the phone behaving different on every ROM - if it's a hardware issue, the occurred problems should have some regularity.
As I didn't have an OTA update option on the stock rom, I'd found out that this could be a "shop rom" (5.8.018), which is not the best choice nor for the first month(s).
Click to expand...
Click to collapse
If your issues were occurring from the moment you got the phone, you know it's a hardware problem. Your seller sent you a defective phone and you should at least try fighting for a partial refund. If you paid through PayPal, open a dispute. If you paid with a credit card, ask for a chargeback. Now, the shop you bought it from might ban you for initiating a chargeback, but it's probably worth it. Or you could just cut your losses and move on. Maybe donate your phone to a dev who wants to try something crazy. :good:
I'm from Germany and I do not really want to return the phone to china or east asia for repairing (bought at banggood). This could take a very very long time. Changing to a new one could be also difficult because there are hardly any more devices out on the market and I need to return it for the change too.
But I am slowly at my wit's end and before these issues are making me more and more crazy, I will accept a problem with the hardware.
Click to expand...
Click to collapse
Oh snap, it's a Banggood phone? I bought my x722 from Banggood. No glaring issues other than the screen one so far, but this does worry me for the future. How long have you had it?
This is the problem with Chinaphones. They're cheap, they've got good specs, but you can't guarantee quality. Especially with now close-to-defunct brands like LeEco. If you're still okay with Chinaphones, get a Xiaomi next. Probably the most reliable Chinaphone brand out there, next to Huawei. And try to buy from an official source. I heard The Solution Shop in Europe sells Xiaomi phones for cheap (?). And always remember to record your unboxings and document all issues from now on.
sk8223 said:
If your issues were occurring from the moment you got the phone, you know it's a hardware problem. Your seller sent you a defective phone and you should at least try fighting for a partial refund. If you paid through PayPal, open a dispute. If you paid with a credit card, ask for a chargeback. Now, the shop you bought it from might ban you for initiating a chargeback, but it's probably worth it. Or you could just cut your losses and move on. Maybe donate your phone to a dev who wants to try something crazy. :good:
Oh snap, it's a Banggood phone? I bought my x722 from Banggood. No glaring issues other than the screen one so far, but this does worry me for the future. How long have you had it?
This is the problem with Chinaphones. They're cheap, they've got good specs, but you can't guarantee quality. Especially with now close-to-defunct brands like LeEco. If you're still okay with Chinaphones, get a Xiaomi next. Probably the most reliable Chinaphone brand out there, next to Huawei. And try to buy from an official source. I heard The Solution Shop in Europe sells Xiaomi phones for cheap (?). And always remember to record your unboxings and document all issues from now on.
Click to expand...
Click to collapse
Admittedly I'm not sure at all if this issue was already present after starting the phone for the first time. One of the first things I have done during the initial setup wizard was using the integrated data transfer app by LeEco (scanning a QR code with the old Xperia Z, downloading app to transfer data to the x720). This app establishes a Wifi direct connection between both phones to transfer the data like apps and other stuff. This transfer process takes at least 6-7 hours and during that process I am sure that the phone was not rebooting a single time. Maybe a specific app or background process of an app causes this irregular rebootings. I have not testet this. I have installed the most common of my apps also using different custom ROMs later.
On the current ROM (Turbos mini 5.19.023s) I have now looked into the last_kmsg.log file severel times after the phone was hard-rebooting (not to emergency mode - the phone is switching down to emergence mode really rarely since I have flashed the stock based ROM) to debug for a kernel problem and the power off reason seems to be ""Triggered from PS_HOLD (PS_HOLD/MSM controlled shutdown)". In the log file I could also find some "kernel panic" entries. So I have a little gleam of hope that the issue is not a hardware problem. I have to test a bit more with the stock recovery/ROMto gain a better knowledge of the issue. I think I will post this into the ROM topic to ask a developer.
sk8223 said:
If your issues were occurring from the moment you got the phone, you know it's a hardware problem. Your seller sent you a defective phone and you should at least try fighting for a partial refund. If you paid through PayPal, open a dispute. If you paid with a credit card, ask for a chargeback. Now, the shop you bought it from might ban you for initiating a chargeback, but it's probably worth it. Or you could just cut your losses and move on. Maybe donate your phone to a dev who wants to try something crazy. :good:
Oh snap, it's a Banggood phone? I bought my x722 from Banggood. No glaring issues other than the screen one so far, but this does worry me for the future. How long have you had it?
This is the problem with Chinaphones. They're cheap, they've got good specs, but you can't guarantee quality. Especially with now close-to-defunct brands like LeEco. If you're still okay with Chinaphones, get a Xiaomi next. Probably the most reliable Chinaphone brand out there, next to Huawei. And try to buy from an official source. I heard The Solution Shop in Europe sells Xiaomi phones for cheap (?). And always remember to record your unboxings and document all issues from now on.
Click to expand...
Click to collapse
Finally - I got it working without any problems now!
Happily it seems to be not a hardware issue. I have flashed the Grossoshop ROM and Recovery via a provided .bat file. This .bat file has flashed the recovery first via fastboot, then the ROM via fastboot. This Grossoshop ROM was based on 5.8.018s I think. Then I have updated TWRP Recovery to the latest version via TWRP itself (flashed the new image). Then I have flashed Mauro's 2.2 (which is based on 5.9.023s) and it is running great! Super performance, no extrem battery drain, no reboots, all is working (except the chinese design downloads as I cannot create a Leeco account from Germany). But now I'm satisfied. :good::laugh:
peed_neslo said:
Usefull information, thank you very much.
Nearly the same problem here: My X720 is only rebooting sometimes, but more often switching off directly (vibrates one time and switches off). While the phone is in that status, the battery is discharging. I can only reboot the phone by holding the power button for about 10sec or to TWRP. Two times I was rebooting the phone and some (not all) settings were restored to default - reflashed the rom... Another time rebooting the phone it hangs in the booting display, did not get it booted completely again - reflashed the rom.... Very strange behaviour and don't know why this happens.
But for about the last month, the phone is only switching off and I can reboot and use it for an unspecific time.
Thanks!
Click to expand...
Click to collapse
My x720 has done the same to me a couple of times now, Vibrates once and turns off and I have to hold the power button for a few seconds longer to turn it back on again which is odd.
The battery was charged over 50% % 70% at the times it happened and I wasn't even using the phone, It was just sat on the table in front of me.
I didn't have any problems at all until a few days ago when it first shut down.
I'm using Oreo - AICP 13.1 from here - https://forum.xda-developers.com/le-pro3/development/rom-aicp-13-0-pro3-aka-zl1-x727-x720-t3698058
The problem now is I don't know where to start troubleshooting When I get time I am planning on a clean wipe and fresh install of AICP again to see if that solves the problem
When using this ROM does your phone heat up a lot.
Sent from my LEX727 using xda premium
Did you manage to fix the problem somehow?

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