[Q] N4 rebooting and loosing signal. - Nexus 4 Q&A, Help & Troubleshooting

I'm running rooted stock 4.4.2 and have flashed the factory image from google a couple of times. Also, I recently replaced the battery. This seemed to coincide with the random reboots. These seem to be getting worse and this morning the phone got stuck in a boot loop. I connected it to the charger and it started ok but strangely it lost wallpaper settings and wifi passwords. Not really a major problem but could mean something.
Checking the battery image, it seems to change levels randomly +/- 10% with charging and reboots. Also GSam battery shows the voltage fluctuating below 3.7v. Do I need to condition the battery? If so how as I don't have the original charger/cable.
With the network disconnect, I went on vacation over Christmas and the phone wouldn't connect to the wifi where we stayed (all other devices would). I flashed a couple of different radios with no success. Before we left there was no problem. Now the phone looses connectivity to the cell network back at home. I've reflashed the factory image of 4.4.2 and still had problems. I've downgraded the radio to .48. This seems to help but the phone still loses connectivity occasionally.
Any ideas if this is software or hardware? Could the new battery be faulty? Any help would be appreciated!

Related

Battery Drain Issue - ROM/Radio/Battery Agnostic

Hey guys,
I'm having a bad battery drain problem with my Touch HD. The phone will drain itself in less than 6hrs, even if it is sitting on a table with all radios turned off, freshly hard-reset, doing absolutely nothing.
Initially I thought it may be an issue with the ROM I was using, but flashing an original HTC ROM didn't help. I thought the radio may be the cause (even though it wasn't in use), but flashing different radios didn't help. I considered the SPL might be the problem, so I reflashed a stock one, didn't help.
I've even tried brand new batteries, but they all drain out like you wouldn't believe. It doesn't matter whether there is a SIM or microSD card in it or not, drain is the same.
What I have noticed is the bottom half of the back gets slightly warm, just sitting on a table doing nothing. This is not something I noticed before this problem began.
Can anyone suggest a solution? Or is it simply defective...
Switch to flight mode and see if drain persists. If it does, then some software must be preventing the device from going to sleep mode.
If you are confident there's no such software installed, might as well be a hardware issue...
If no drain when in flight mode, then you may have wi-fi/BT/wireless connections always on causing this.
I'm almost 100% certain, since it does it on several different ROMs (including stock ones), several different radios, all with the phone in flight mode, all straight after a hard reset. Even so, it shouldn't do it simply connected to the 3G network, an Xperia X1 connected to the same network sitting next to it doesn't experience anywhere near the drain of this thing.
Looks very much like a battery issue..
However have you tried charging it from wall socket rather than USB (USB seems to incompletely charge HD - though it may say 100% battery actually charges up to ~70% only).
spoilt battery?
I had this problem after using videocall only a week after getting the device (this was about 4 weeks ago)
The steps i took (which i got from here) was once the battery went down to 10% I turned off the phone and charged it to full from the power point (not via usb). Then I did the htc troubleshoot test (http://www.htc.com/www/faqs.aspx?p_id=179&cat=80&id=85780) and it seemed fine form then on. But in the tips section in here, its good to discharge and recharge your phone the first week or two you get it, I'm still doing it

Wifi problem, battery drain and charging problem

I had the nexus 4 for few months, and has been the best phone I ever had.
I had only a small issue when my battery started to consume faster than usual, my business email went in loop so I just reinstalled it and everything was fine.
Problems started last week: I decide to buy a Samsung S4 (I really need the wifi calling, and I would like to remove and switch the battery),
so I go to tmobile and sign for it. They give me a new sim and transfer my old number on the new sim.
I did not install app, nothing else changed. From that moment Battery is draining super fast (will not last over 3 or 4 hours now) Has problems also to charge (I don't know if it's for the charging or becuase is draining the battery so fast)
I have also problem with wifi now, also if as usual I will connect to my home wifi, datas will not work.
Now that I have the wifi off, is continuing to drain battery very fast.
I rooted the phone as soon as I bought it, I'm still on 4.2.1
Tonight when I will receive the samsung I will unroot the phone and will update to the new version and will do a factory reset, hopefully the problems will be solved
Is possible that the battery drain and the wifi problem are caused simply by the new sim?

[Q] Battery difficulties

I have a D802, unrooted. I bought it online, not from a carrier.
I upgraded it to KitKat a month or two ago (the official update).
Within the last week it has started just losing power when the phone is still reporting 30%+ left on the battery. It does normally seem to die when I'm doing something, rather than when it's just on standby in my pocket. When the screen comes back on after plugging it into the charger it shows the same 30% or 40%.
I have tried a factory reset (albeit using LG backup to restore everything afterwards) and it doesn't seem to have helped.
Does anyone have any information on what might be causing this, and/or how to fix it?
ThatDeadDude said:
I have a D802, unrooted. I bought it online, not from a carrier.
I upgraded it to KitKat a month or two ago (the official update).
Within the last week it has started just losing power when the phone is still reporting 30%+ left on the battery. It does normally seem to die when I'm doing something, rather than when it's just on standby in my pocket. When the screen comes back on after plugging it into the charger it shows the same 30% or 40%.
I have tried a factory reset (albeit using LG backup to restore everything afterwards) and it doesn't seem to have helped.
Does anyone have any information on what might be causing this, and/or how to fix it?
Click to expand...
Click to collapse
This is most definitely a battery defect, so a hardware issue. The battery must have lost capacity - I've experienced the same happening with laptop battieries where some "cells" die and the laptop would just shut down at 30% battery.

Nexus 4 radio issues, battery issues, constant reboots

I purchased my nexus 4 on release from the Google Playstore (UK) over 2 years ago now, recently updated it to stock 5.01 and have been bombarded with problems.
When using the phone, after about an hour of use it will suddenly ask me to re-input my sim card pin (I'm assuming this is a radio issue). After doing so, more often than not the phone will then just shut down - sometimes with a screeching noise?! At this point the battery still has around 50-60% left, when I then turn the phone on again, the battery suddenly drops and I usually see the figure to around 1-10%. This has required me to charge the phone 2-3 times a day in order for it to function, extremely annoying that the radio seems to fail and not pick up any network signal after the phone drops past 60% battery.
I've attached an image of my battery life to show what I mean about the drop - it's quite frustrating as I've looked after the phone extremely well so I can't understand why these problems are occurring.
Any help would be much appreciated!
ri$h said:
I purchased my nexus 4 on release from the Google Playstore (UK) over 2 years ago now, recently updated it to stock 5.01 and have been bombarded with problems.
When using the phone, after about an hour of use it will suddenly ask me to re-input my sim card pin (I'm assuming this is a radio issue). After doing so, more often than not the phone will then just shut down - sometimes with a screeching noise?! At this point the battery still has around 50-60% left, when I then turn the phone on again, the battery suddenly drops and I usually see the figure to around 1-10%. This has required me to charge the phone 2-3 times a day in order for it to function, extremely annoying that the radio seems to fail and not pick up any network signal after the phone drops past 60% battery.
I've attached an image of my battery life to show what I mean about the drop - it's quite frustrating as I've looked after the phone extremely well so I can't understand why these problems are occurring.
Any help would be much appreciated!
Click to expand...
Click to collapse
To be honest, they all sound like gremlins from old data left in the partitions from the previous OS versions. I am on 5.0.1 and experienced none of those issues, in fact, it runs like butter. I would suggest a full wipe and see if that fixes the issue. Residual data can cause these sorts of random issues.
OP I have the issue with radio after a fresh factory image install. I have signal but cellular data will stop flowing. This is intermittent. Switching to airplane mode sometimes fixes the problem, but sometime I have to reboot. Considering going back to KitKat.
If you using android 5.0.0-5.0.1 - this can be android bags. i have this too it make me crazy!
I managed to get round to rebooting today (had exams lately so literally no time to sort the phone out). Did a factory reset and still the same issues, in fact it's gotten progressively worse since the last time I posted, battery cuts out at around 80% (switched off today at 87%). I get about 40 mins on screen time and bam, shuts down, I'm able to switch it back on in a minute or two, where I then see it down to about 15%. The fact that it's continuously asking me for my sim card pin is insanely frustrating, even more so when it shuts down RIGHT after i put it in.

MX4 Pro - network cuts off and battery suddenly drains to zero

I wonder if anyone can help me...I have an MX4 Pro, with the latest firmware (Global version, Flyme 5.1.12.0G), and I've been having a few issues.
For some time I've had an issue where the network cuts our if I am using mobile data. Sometimes it's OK, but other times the signal suddenly shows zero bars. If I reboot then it works, at least for a bit. This is not due to a poor signal. It has happened sporadically for a while and not just on this latest firmware.
Now, when this happens the battery suddenly drains. I can literally see the battery reading go from 45%, or whatever it is, to zero in a few seconds. The phone then shuts off. Last time it did this I plugged the power it (otherwise it wouldn't re-boot) and when it did come on, just seconds later, the power was back at 45%. So, I don't think it's simply a bad battery issue.
I also have had a power drain with a GPS app, in that the battery was almost full (and it really was) thought the app drained the power in no time. At other times, it works as it should. Other than this, the batter has only suddenly drained when the network signal has been lost.
I have tried to remove the sim and plonk it back in after a reboot, and I have "updated" with the same firmware. The issue still persists though.
Any hints would be much appreciated!

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