[ONE Q&A, Help & Troubleshooting] Sanjeev31aug:
Source:- Here

(Aug 5th 2014, 9:00 AM IST) I received my 1+1 phone, I was very happy until I found this weird issue and I am very depress since then.

My Phone is getting Frequent Random Restart since I started it. I made an factory reset when it was out of the box and battery was around 30%.

After that I ran an OTA update [Jul 02 Built] and installed all my Apps from Google Store , it was fully discharged after few hours and I think when battery was about to die <3% it restarted 2 or 3 times own it own.

I put it on charging(first charging) when battery level dropped to 1%, While charging I got 4 Random Restart till 100% Charging and it took around 5-6 hrs to get a complete charge.

I have also noticed some heating issue at Top part of the phone.

After That I tried connecting and copying some data from my PC to Phone but it gave me 3 Random Restart in 5 min interval.

I again made an factory reset from Recovery and Cleared Cache also, but even after doing this I am getting same issue.

It's getting Restart in between calls, on charging, off charging.I am fad up now as it has restarted own it's own for more than 10 times now in a Single day.

Just Now I was on call and it restarted again and I see that all of my Accounts "Google, WhatsApp, mail, Facebook ,Viber etc" GONE?????????????????????? Saved wifi password gone.

What the hell is happening to it....

Update 1:- (Aug 5th 2014, 6:00 PM IST)

Also I noticed one more issue and it may be related to restart issue. After 2nd Rest When my apps was getting updated and installed, some of the Apps icon didn't showed on App drawer, I had to restart my phone to make them visible.

Update 2:- (Aug 6th 2014, 01:00 AM IST)

I have tried every way to resolve it (factory rest, Cache Clear, Re-Flashed CM11S ROM [Jul 02 Built] ), but still getting Random Reboots.

Update 3:- (Aug 6th 2014, 4:00 PM IST)

I have done the Cache wipe and Factory reset every time I install any ROM. I observed that evrytime it was rebooted my wifi was ON and connected.

I have now Installed the fresh ROM [Jun 19 Built] from this link, after Wiping Cache and Factory reset from Recovery ,I have not turned ON the Wifi after flashing this ROM.

And Now it's being 2:30 hrs , I didn't noticed any random reboot issue. Will give it a try till morning, Till next random reboot or Till get reply from Support.

Update 4:- (Aug 07 2014, 12:05 PM IST)

Currently I am using CM11S ROM Jun 19th Build (cm-11.0-XNPH25R-bacon-signed.zip), and I flashed it from Recovery only. [No random reboot since I Flashed it (20 hr) without Wifi, Need to check With WIfi].

Before that I had flashed CM11S ROM Jul 02 Built (cm-11.0-XNPH25R-bacon-signed-fastboot-Offical.zip) using ADB only and after that flashed Custom Roms [Mandi and PA ]from Recovery. [Had Random reboots with These Roms]

Let me First Turn ON the Wifi and use it for half day at least with this currently Installed ROM , That will Clear all doubts, that whether it was faulty filesystem, Modem etc issue or Actual Hardware Issue.

If turning on wifi goes well, I will first Flash CM11S ROM Jul 02 Built (cm-11.0-XNPH25R-bacon-signed-fastboot-Offical.zip) from Recovery. and will observe it for one day.

Update 5:- (Aug 07 2014, 12:15 PM IST)

Turned On the WiFi, Hopefully it will not reboot this time, fingers crossed .

Update 6:- (Aug 07 2014, 04:40 PM IST)

Ok Guys, Here is an Update on Random Reboot Issue. And I guess it's Gone...:):):) Much relaxed now. it's been Total 1 day till last random reboot (after Flashing OLD Built of CM11S ROM Jun 19) [20 Hrs without WiFi and 4 Hrs. With WiFi]

Note:- My Built ROM is old. Jun 19 and feel very stable, and I think new OTA update [Jul 2] has lot's of bugs. One can switch back to old ROM built for stable version of CM11S.

Update 7:- (Aug 07 2014, 07:00 PM IST)

Just Had an another Random reboot on my OPO after 30 hrs [First 20hrs without Wi-FI, next with Wi-Fi]. :(:(:(:( , My WiFi was ON, Downloading Game from Play Store was in process, and Was Playing with Advanced Wi-Fi Setting[Wi-Fi optimisation and Wi-Fi Frequency band].

Note:- Before this Random Reboot (around 10 min), I had changed the them pack to "MAHDI-ROM OFFICIAL THEME".

Update 8:- (Aug 07 2014, 07:20 PM IST)

I have Uninstalled The "MAHDI-ROM OFFICIAL THEME" at around 7:18 PM IST, and got another Auto reboot at 7:20 PM IST [again I was in Advanced Wi-Fi Setting], but after this reboot I got Message in boot screen "Android is Updating 1 out of 1".

Again I am confused with this problem, whether it is Wi-Fi issue or ROM issue with themes and other setting ?????

Update 9:- (Aug 07 2014, 07:30 PM IST)

Had another Auto reboots at 7:30 PM, This time also was downloading something from Google store with WiFi Connection and I Was in Advanced Wi-Fi Setting option.

Looks like I need RMA.

Update 10:- (Aug 08 2014, 11:05 AM IST)

Came to conclusion that it's faulty Wi-Fi Antenna, As I had many(5-10) Auto Reboots after update 9 [Had Installed Fresh Old Custom ROM CM11S Jun 19 Built and With Wi-Fi Getting reboots]. You can also see from Bug Reports below that just before Reboot Wi-Fi Drivers stopped working and crashed. (Search with "Rebooting" Keyword in below reports).

http://paste.ubuntu.com/7969499/

http://paste.ubuntu.com/7969597/

http://paste.ubuntu.com/7981220/

http://paste.ubuntu.com/7981278/

http://paste.ubuntu.com/7981296/

I have raised RMA on 5th Aug but Still after 3 days No response from 1+ Support. Very disappointed with the service, wasted my time, money, efforts and lost faith in 1+.

Update 11:- (Aug 09 2014, 11:40 AM IST)

Ok Looks like it's the Wi-Fi compatibility issue with my laptop Hotsport, as When I connect Wi-FI through Portable Hotspot(Tethering) from my old phone(Galaxy Grand), it works fine and give no Auto reboot, but if I connect with Hotspot connection from my Laptop(through Connectify or mHotspot), it give Auto reboots issue.

But I have a question, I was using Hotspot connection from my Laptop(through Connectify or mHotspot) on Galaxy Grand for around 1 year and didn't faced any issue on that, then Why it's happening with OPO? is it bad hardware or it's compatibility issue?

Update 12:- (Aug 09 2014, 06:36 PM IST)

Flashed CM11S Jul 02 Built, Installed MADHI Theme, and two more Auto reboot with Normal Wi-Fi Connection as well, Earlier I was thinking it's my Laptop Hotspot (Connectify) causing the issue but reality is something different now.

Whom to blame now? (A) Faulty Hardware (B) Bug with Both CM11S Jun 19 and Jul 02 Built (C) Theme's Compatibility with these ROM'S ?

I will now again Flash CM11S Jul 02 Built and try not to use any theme and see how it will work with that.

Update 13:- (Aug 10 2014, 05:15 PM IST)

OK, Final Conclusion. It's Hardware issue or Wi-Fi Driver Issue(Will be looked as Hardware issue only as I can't Change Wi-Fi Drivers).

How I came to this conclusion is because I tried 6 Different ROM's (CM11S Jun 19 Built, CM11S Jul02 Built, MAHDI, PA, Slim and Gummy) with Themes and Without Themes and getting reboots while Wi-FI is connected (even with Wi-Fi Direct and CastScreen).

http://paste.ubuntu.com/8006662/

http://paste.ubuntu.com/8006684/

Not expecting any reply from 1+ support for my RMA so raised Dispute on Paypal.

Wasted my money for such a crap phone and very disappointed with the service.