[Q] No network signal, cache seems to have failed - Nexus 5 Q&A, Help & Troubleshooting

I jumped the gun and tried flashing the 4.4.1 .zip for the N5 found here: http://www.droid-life.com/2013/12/05/download-android-4-4-1-update-for-the-nexus-5/
It flashed fine, so I then proceeded to wipe the cache/dalvik. This is where I ran into a problem. It sat there, stuck in the process of clearing the cache. After 5 minutes, I turned off the phone out of frustration. The phone booted up and began the "apps optimization" bit that you get after updating. Then I went to sleep. When I awoke, I noticed my phone wasn't receiving a cell signal and I thought, no biggie, cell service isn't very good in my house anyway. When I got to work later, I realized this was a problem. I can't receive a cell signal. My next thought was to flash the new radio to see if that fixed the problem. Well, I can't download anything onto my phone, nor can I transfer from my computer. It says that my storage is full, yet I can go to storage and see that I have over 5 GB of free space. Astro does not recognize that I even have internal storage.
Does anybody have any suggestions? I was just about to perform a factory reset but thought I should check here first. Any help would be greatly appreciated.

bump

Flash factory image.
Sent from my Nexus 5 using Tapatalk

0dBu said:
Flash factory image.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I found the 4.4 image. Flash using adb? What are the commands?\\
EDIT: Problem solved at the expense of my data.

tceffErorriM said:
I found the 4.4 image. Flash using adb? What are the commands?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=47156064

Ppl are getting lower signal, but is the signal dropping? Emergency calls only?
Sent from **Nexus 5 sucks**

Just had the same problem. In TWRP I went into the advanced wipe option, wiped only the cache. Then I flashed the radio. It is working again.

dicecuber said:
Ppl are getting lower signal, but is the signal dropping? Emergency calls only?
Sent from **Nexus 5 sucks**
Click to expand...
Click to collapse
The problem was worse than that. There wasn't any signal at all. Not even possible to place emergency calls.
Anyways, I flashed the factory images which fixed the problem. I then proceeded to flash 4.4.1 and so far so good.

Related

baseband unknown :((

So i must have messed up my phone while using the all in one root unlocker and so on. Im not sure what i did, but i finally got my phone to boot, and now i get no service. Im on tmobile and it says i have no sim card. When i go into about phone it shows baseband unknown.
I really have no idea what to do. Ive never been stuck in this situation. Maybe someone more experienced can point me in the right direction?
any help would be appreciated!
aamzalag said:
So i must have messed up my phone while using the all in one root unlocker and so on. Im not sure what i did, but i finally got my phone to boot, and now i get no service. Im on tmobile and it says i have no sim card. When i go into about phone it shows baseband unknown.
I really have no idea what to do. Ive never been stuck in this situation. Maybe someone more experienced can point me in the right direction?
any help would be appreciated!
Click to expand...
Click to collapse
so furthermore, it looks like i have no data partition anymore, i can go on my chromebrowser on the phone and browse the web but when i try to install anything it says no sdcard. I also cant move anything to the phone via windows, it just freezes even tho i can see the phone and go into the internal storage.
Im really screwed here. Ive also used the fastboot files to flash back to google stock, but for some reason continue to find everything borked.
HELP PLZ!!! ahah
Also, finding that i cant mount any partition, cache, data, anything liek that. It seems like my partitions have been messed up . Not sure how to resolve that
Well it looks like your the first one to brick the nexus 5. If your imei is missing your screwed.
P.S.A DON'T USE TOOLKITS
Sent from my NEXUS 5
Might be helpful to others to explain exactly what you did to your phone.
lafester said:
Might be helpful to others to explain exactly what you did to your phone.
Click to expand...
Click to collapse
He used a tool kit. Who knows what it did to his phone
Sent from my NEXUS 5
I realize that maybe using the toolkit may not have been a good choice but considering im already here. Constructive advice might be a little more helpful... I know that with my old verizon GS3 if i lost my imei/ similar info, i could nv flash myself and get it back in certain cases. Does a similar thing not exist for the nexus 5? Id imagine that a truly unlocked device like this one should have a method to get back from anything?
aamzalag said:
I realize that maybe using the toolkit may not have been a good choice but considering im already here. Constructive advice might be a little more helpful... I know that with my old verizon GS3 if i lost my imei/ similar info, i could nv flash myself and get it back in certain cases. Does a similar thing not exist for the nexus 5? Id imagine that a truly unlocked device like this one should have a method to get back from anything?
Click to expand...
Click to collapse
If you've flashed the stick images and it hasn't fixed it then you might be out of luck. With the n4 there is a thread on how to restore the phone with LG nv flash in download mode. I don't think the tools or files are available yet for the n5 tho
Sent from my NEXUS 5
i dont know what i did, but i restored the factory image one more time, then booted to stock recovery and wiped all partitions. The phone booted and my imei and baseband are back. Working 100% now. Gonna sit out the rooting and so on for now. time to relax for a bit
So you can't fastboot flash anything? Can you fast boot flash twrp recovery from the android SDK on a PC?
Sent from my Nexus 7
aamzalag said:
i dont know what i did, but i restored the factory image one more time, then booted to stock recovery and wiped all partitions. The phone booted and my imei and baseband are back. Working 100% now. Gonna sit out the rooting and so on for now. time to relax for a bit
Click to expand...
Click to collapse
That's how I fixed my N4. I flashed the factory images 3 times.
Glad it's working finally
Sent from my Nexus 7
Ya, fastboot continued to work, and iw as able to flash the factory images.At first those werent fixing anything. the final time i flashed it right before it worked again, i let the phone sit and run the boot screen for about 30 minutes before i went to stock recovery and wiped. Then it booted perfectly.
The previous times i had flashed twrp and wiped which i believe was the cause in the first place.
Thanks all its working perfect now. The device is amazing,!
aamzalag said:
The previous times i had flashed twrp and wiped which i believe was the cause in the first place.,!
Click to expand...
Click to collapse
Sames just happened to me, but I didnt use a toolkit, i did it all manually.
Quick flash of the factory image sorted it. :victory:
UPDATE: Flashed TWRP again....All ok this time.
You guys unlocked the bootloader first right?
Sent from my SGH-I747
This has just happened to me. I have installed the stock images 2 times now.
Is there anything you guys did differently to make it work?
My N5 decided to wipe the baseband and IMEI when I went to wipe the cache through recovery. Tried to reflash factory images 5 times and each time, when the phone boots up, hangouts, camera and gallery apps force close and I still have no network signal or IMEI/baseband.
Worst bit is all I did was wipe the cache partition, done that a million times and never had this problem
Anyone know what i can do?
I've relocked the bootloader for now but I can't call Google because my only phone is the Nexus 5 so that's out of the question.
Edit:
Managed to fix it by using a slightly different set of fastboot commands.
Here's what I did:
adb reboot bootloader
fastboot flash bootloader bootloader-hammerhead-HHZ11d.img
fastboot reboot-bootloader
fastboot flash radio radio-hammerhead-M8974A-1.0.25.0.17.img
fastboot reboot-bootloader
fastboot -w update image-hammerhead-krt16m.zip
fastboot reboot-bootloader
That worked for me
WRAITH07 said:
My N5 decided to wipe the baseband and IMEI when I went to wipe the cache through recovery. Tried to reflash factory images 5 times and each time, when the phone boots up, hangouts, camera and gallery apps force close and I still have no network signal or IMEI/baseband.
Worst bit is all I did was wipe the cache partition, done that a million times and never had this problem
Anyone know what i can do?
I've relocked the bootloader for now but I can't call Google because my only phone is the Nexus 5 so that's out of the question.
Click to expand...
Click to collapse
After you flash the factory image, boot into recovery and do a factory reset.
You mentioned a cache wipe. Was this in CWM or TWRP? My N5 hung trying to do a cache wipe in CWM. After rebooting the sdcard was inaccessible. The solution was to flash TWRP from fastboot, and do an advanced wipe of only the cache, and give it TIME. Like 5-10 minutes. After another reboot I had the sdcard and radio back, but some write permission issues. One more reboot and everything was ok again.
Sent from my Nexus 5 using Tapatalk
cmstlist said:
You mentioned a cache wipe. Was this in CWM or TWRP? My N5 hung trying to do a cache wipe in CWM. After rebooting the sdcard was inaccessible. The solution was to flash TWRP from fastboot, and do an advanced wipe of only the cache, and give it TIME. Like 5-10 minutes. After another reboot I had the sdcard and radio back, but some write permission issues. One more reboot and everything was ok again.
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I had this issue while wiping cache in TWRP 2.6.3.0
Sent from my Nexus 5 using Tapatalk

Wiping cache and dvalik in twrp

Is it just my phone or does it take absolutely ages?
Sent from my Nexus 5 via Tapatalk
Nope it's not just you.
Sent from my Nexus 5
Good! Lol. Cus on my Xperia its a few seconds of a process!
Sent from my Nexus 5 via Tapatalk
Same for me! Takes a good few minutes :/ On my Nexus 4 it would be a couple seconds!
Must be something to do with Android 4.4 I assume?!
Every time I do it, wipes my imei and I have to flash the factory image...I'm actually looking for a twrp flashable cwm file if that makes any sense
Sent from my Nexus 5 using XDA Premium 4 mobile app
mrakifa said:
Every time I do it, wipes my imei and I have to flash the factory image...I'm actually looking for a twrp flashable cwm file if that makes any sense
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Haven't seen a zipped cwm for the N5 yet. Why not just flash the .img in fastboot?
I just load up fastboot in my computer and
Code:
fastboot format cache
takes 3 secs
and format data separately in recovery mode....
george241312 said:
I just load up fastboot in my computer and
Code:
fastboot format cache
takes 3 secs
and format data separately in recovery mode....
Click to expand...
Click to collapse
Lol. Not with my laptop! It takes half a day to turn on
Sent from my Nexus 5 via Tapatalk
MattyPW said:
Same for me! Takes a good few minutes :/ On my Nexus 4 it would be a couple seconds!
Must be something to do with Android 4.4 I assume?!
Click to expand...
Click to collapse
It took several minutes also for me. Really awkward. With my previouse phone, LG p880, it was a matter of few seconds.
Probably the best part of 10 minutes to wipe cache/dalvik for me today!
Its a know issue with the N5. I believe its hardware related. TWRP devs will figure it out.
eep2378 said:
Its a know issue with the N5. I believe its hardware related. TWRP devs will figure it out.
Click to expand...
Click to collapse
Yes, it is. And there is a workaround for that issue: Go to the TWRP settings and activate "format rm - rf", so your wipe takes normal time as known.
You can find more about that in the TWRP Nexus5 main thread here .
Regards
Koetermann
For me personally, wiping the cache entirely deletes my internal storage so I would avoid it at all costs until there is an update..
Ben36 said:
Is it just my phone or does it take absolutely ages?
Sent from my Nexus 5 via Tapatalk
Click to expand...
Click to collapse
It takes my device a little while to wipe via TWRP.
scottdouglasdick said:
For me personally, wiping the cache entirely deletes my internal storage so I would avoid it at all costs until there is an update..
Click to expand...
Click to collapse
Such thing never happened to me. Formatting cache takes like 3 minutes for me, but it doesn't do any awkward. Unless you reboot while formatting ofc.
I'm avoiding wiping cache in TWRP at the moment...
first time i did that it borked something and i couldnt even switch airplane mode off or open play store when i got wifi on etc...wasnt that nice
Koetermann said:
Yes, it is. And there is a workaround for that issue: Go to the TWRP settings and activate "format rm - rf", so your wipe takes normal time as known.
You can find more about that in the TWRP Nexus5 main thread here .
Regards
Koetermann
Click to expand...
Click to collapse
Yep. Everyone should use this advice.
Sent from my Nexus 5 using Tapatalk
mrakifa said:
Every time I do it, wipes my imei and I have to flash the factory image...I'm actually looking for a twrp flashable cwm file if that makes any sense
Sent from my Nexus 5 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Which factory image do you use? I just ran into this issue and it's driving me nuts.
I wish I would have found this thread sooner. I just wiped my internal storage and IMEI doing this. I have a backup of my IMEI, but restoring it with TWRP doesn't seem to do anything.
Will restoring the factory image fix this, or do I need to do that and restore this backup?
SO if you change it to rm-rf it doesn't bork your cell connection? I know it'll wipe faster but still leary on cell connection. Or is it that this only happens if you make the mistake of rebooting instead of waiting???? I'm wanting to jump on SlimKat and coming from an Evo LTE the procedure to clean wipe I'm familiar with is wiping system/data/cache/davlik cache so I've been holding off worried about the cache part. I've been using 2.6.3.2
Why would wiping cache screw up your cell connection? And how does this wipe your entire phone?
sent from my beantastic almost retired Bionic

Emergency please help - lost network access

Hi all,
I went into TWRP and did a backup.
Then, I wiped Cache/Dalvik. Dalvik wiped very quickly, cache however just hung and after 10 minutes, i held down power to turn off the phone.
Upon rebooting, I no longer had cell service. Under APN no longer did I see tmobile fast apn (there just aren't any aPN There).
What is going on?
I also cannot get cell service...
Any thoughts?
Restore your backup
h20wakebum said:
Hi all,
I went into TWRP and did a backup.
Then, I wiped Cache/Dalvik. Dalvik wiped very quickly, cache however just hung and after 10 minutes, i held down power to turn off the phone.
Upon rebooting, I no longer had cell service. Under APN no longer did I see tmobile fast apn (there just aren't any aPN There).
What is going on?
I also cannot get cell service...
Any thoughts?
Click to expand...
Click to collapse
DO NOT force a shut down while the phone is wiping.
You are going to either need to restore your backup, or if that doesn't work flash the original cache.img in fastboot from the stock files in this thread. Just the cache. In TWRP, either update to the 2.6.3.4 or enable rm -rf in the version you have now to fix the slow wipe.
http://forum.xda-developers.com/showthread.php?t=2513701
Synyster06Gates said:
DO NOT force a shut down while the phone is wiping.
You are going to either need to restore your backup, or if that doesn't work flash the original cache.img in fastboot from the stock files in this thread. Just the cache. In TWRP, either update to the 2.6.3.4 or enable rm -rf in the version you have now to fix the slow wipe.
http://forum.xda-developers.com/showthread.php?t=2513701
Click to expand...
Click to collapse
I know you're NEVER supposed to but...
So.. I used ADB and flashed CWM recovery (don't know why but i've never like TWRP).
I was then able to wipe cache/dalvik and reboot which fixed my issue.
Thanks for your prompt reply.
Glad you got it taken care of. I had a similar issue after returning to stock (the last command in the link above deleted the cache and I had the same issue as you) and I had to push that img one more time and I was good.
Synyster06Gates said:
Glad you got it taken care of. I had a similar issue after returning to stock (the last command in the link above deleted the cache and I had the same issue as you) and I had to push that img one more time and I was good.
Click to expand...
Click to collapse
Ya what prompted this was horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible horrible
battery drain.
I'm not even turning my phone on and it's down to 50% in less than 4 hours off charger.
WTF WTF WTF
I use autostarts and have disabled almost all 3rd party apps from starting up randomly.
I can't tell what the f$ck it is.
I was going to factory reset (and not install ANY apps) and see if it got better...
This is pathetic!
Cell Standby does take up about 20% and is a top contributor to drain... nothing i can do abotu that though.
Are you running any ROMs/Kernels? I had some battery drain issues when running CM11 based ROMs. Any using any kernel that had double tap to wake.
Go through and flash the stock image if the factory reset doesn't fix it.
Synyster06Gates said:
Are you running any ROMs/Kernels? I had some battery drain issues when running CM11 based ROMs. Any using any kernel that had double tap to wake.
Go through and flash the stock image if the factory reset doesn't fix it.
Click to expand...
Click to collapse
I'm just rocking a rooted phone, stock rom/kernel.
It's freaking unbearably bad...

[Q] Everything is messed up

idk what happened i was using my phone as normal and was using snapchat, then my camera crashed and rebooted my phone. then i noticed that i didn't have signal so i went to the settings and noticed that everything that has to do with ril is gone like imei, imei sv.
i have tried taking the sim out and back in but it wont work,
also my camera wont work, google play store crashes, but one weird thing is that my modem version does not show in settings but it does in when entering the bootloader. i flashed stock 4.4.2 but still nothing is working
please i need help, have tried searching the forums but cant find any thing this similar sorry if this has been answered before (and i don't have a efs backup because im stupid..)
try reflashing your rom/gapps
Which mods did you have on your phone before it crashed?
Sent from my Nexus 5 using Tapatalk
simms22 said:
try reflashing your rom/gapps
Click to expand...
Click to collapse
already did that, but still no go, also it turns out i cant access my sd card on the pc nor on the nexus 5
nemofbaby2010 said:
Which mods did you have on your phone before it crashed?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
was using multirom with the sense 6.0 port, and xposed. that was pretty much it
FettleifIsMyUserName said:
was using multirom with the sense 6.0 port, and xposed. that was pretty much it
Click to expand...
Click to collapse
did you flash the stock rom zip or did you use the actual factory images?
try using the factory images youll lose everything but you might get your phone back: https://developers.google.com/android/nexus/images#hammerheadkot49h
nemofbaby2010 said:
did you flash the stock rom zip or did you use the actual factory images?
try using the factory images youll lose everything but you might get your phone back: https://developers.google.com/android/nexus/images#hammerheadkot49h
Click to expand...
Click to collapse
used the factory image didnt work, internal sdcard is gone, gonna try one more time
flashed the 4.4.2 factory image, still the same problems no imei or nothing and the sdcard is blank
FettleifIsMyUserName said:
flashed the 4.4.2 factory image, still the same problems no imei or nothing and the sdcard is blank
Click to expand...
Click to collapse
Sounds like another flash memory failure. Call Google and see if they'll RMA it.
FettleifIsMyUserName said:
flashed the 4.4.2 factory image, still the same problems no imei or nothing and the sdcard is blank
Click to expand...
Click to collapse
Have you flashed the cache.img? Try flashing it 2-3 times... Or just head over to stock recovery and format cache 2-3 times and then do a factory reset.. These things needs to be done via the stock recovery and not a custom one.
I had a similar problems some weeks ago and this solved it!
theesotericone said:
Sounds like another flash memory failure. Call Google and see if they'll RMA it.
Click to expand...
Click to collapse
i live in norway we cant send them to google directly it has to go trough the company where u bought it, say for an example my carrier telenor which would then deal with the problem. but i bought mine of ebay because i wanted it faster (due to problems of the 2012s nexus 7 where we didnt receive it before november.) so i guess the phone is pretty much useless now?
vin4yak said:
Have you flashed the cache.img? Try flashing it 2-3 times... Or just head over to stock recovery and format cache 2-3 times and then do a factory reset.. These things needs to be done via the stock recovery and not a custom one.
I had a similar problems some weeks ago and this solved it!
Click to expand...
Click to collapse
didn't notice your comment, ill try it and report back
nope...wiped the cache 3 times then a factory reset in stock recovery booted up still the same problems
Don't know if this will work in your case but it may be worth a try http://forum.xda-developers.com/goo...orial-how-to-flash-factory-images-lg-t2713833
Give a try to this method too maybe it will work for you.:good:
http://forum.xda-developers.com/goo...o-repairing-corrupted-data-partition-t2577447
i had the same issue when running the Nexsense port. There was a known issue that it would break the sensors back when it first got released but the DL link got removed immediately. after that there was a post to correct the sensors. but there was another issue with it as well. seeing as it was a NAND backup, it was very possible it re-wrote you EFS partition on your phone which stores you IMEI and other data like that. The only possibility of getting that back, is if you did a backup of the EFS partition prior to having an issue. just a warning: DO NOT FLASH ANOTHER PHONES EFS PARTITION TO YOURS. the only way to get the phone to work again with a messed up EFS partition (from what i have seen) is through replacement device unfortunately
http://forum.xda-developers.com/showthread.php?p=52414651 to let all of you know it is solved
Tapatalk-kal küldve az én Nexus 5-el

[Q] Problems flashing an already rooted 4.4.3 over 4.4.2

I flashed the ROM and baseband per instructions in this thread: http://forum.xda-developers.com/goo...-android-4-4-3-ktu84m-rooted-busybox-t2557523
I had 4.4.2 and he said it had to be stock, and it was with the exception of potentially having some system files modified due to other apps, like Android Tuner. I wiped Dalvik cache and regular cache, installed both files as mentioned through TWRP, and yet upon starting I get a notice to update to 4.4.3 despite already being on 4.4.3, and it can't connect to T-Mobile which is my service provider. Am I doing something wrong here? I figured by "stock" ROM he meant the original and not CyanogenMod or anything like it. Was that supposed to mean stock Android with zero modifications to the system files?
I didn't want to do a factory reset and have to redo all my data and applications, but if I must then I will.
There is a rough thunderstorm going on so maybe that knocked out T-Mobile service, but I find it rather coincidental.
]UPDATE] Turns out that the storm coincidentally disabled the towers at around the exact time I updated my phone. The phone was flashed fine. T-Mobile is the problem. Thanks for the help!
It doesn't matter what ROM you're coming from but if it's not stock you need to wipe. But whatever mods you have on stock is irrelevant.
If you're having issues connecting,, wiping cache is often the cause. Check. Our imei etc is correct. Maybe fastboot flash a stock cache image or Nandroid restore
Sent from my Nexus 5 using Tapatalk
rootSU said:
It doesn't matter what ROM you're coming from but if it's not stock you need to wipe. But whatever mods you have on stock is irrelevant.
If you're having issues connecting,, wiping cache is often the cause. Check. Our imei etc is correct. Maybe fastboot flash a stock cache image or Nandroid restore
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It was the original stock that shipped with the phone, with potentially some files modified from an application. Strangely when searching for networks to connect to, Sprint and AT&T show up as normal but not T-Mobile, although their APN's show up as if I am connected but can't get access to their service.
The IMEI within the phone appears to match the worn off label. Either way, I cleared the Dalvik and regular cache again so I'll see what happens when the phone finishes booting.
Surely it's booted by now?
Sent from my Nexus 5 using Tapatalk
rootSU said:
Surely it's booted by now?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It finished updating the apps and didn't get a connection, however when I traveled outside of my home zone to work, after I reach the spot outside of the city at which there is no LTE support and it drops to EDGE the connection picked up and remained. After I returned from work and got back in the city near my home where it switches back to LTE the connection dropped again and remained that way even after wiping the caches again.
Does this still sound like a software problem or maybe it's on T-Mobile's end?
Fixed
Turns out that the storm coincidentally disabled the towers at around the exact time I updated my phone. The phone was flashed fine. T-Mobile is the problem. Thanks for the help!

Categories

Resources