Develop Bugs

Mobile Network Drop

Not sure if anyone else has had this problem but i randomly get mobile network drops once or twice a week. The phone works perfectly well but the mobile network just drops, you cannot scan for network at all. The only way i have found around it is to enable plane mode to drop all connections and then turn plane mode back off so the network starts up. This often takes between 5 - 10 mins for it to kick in.
Tried two roms but now back to stock but still happening.

Have you tried flashing the latest radio? They are listed in the dev section.

The recent OTA 1.21.405.2 update included a new radio I think. Did you put this on too?
Since then, I have also been having the network drop out. I am missing a lot of calls as a result. Prior to this update I had two months of problem-free operation on my stock 2.1 ROM.
From reading the google forums, this is a wide-spread issue. The light at the end of the tunnel seems to be that people updating to 2.2 froyo seem to see the problem stop. Two weeks to wait for us stock ROM boys according to the rumours then! Fingers crossed.
It's a bit embarrassing having this flashy toy when it struggles to be a phone at random intervals. At the weekend one of my less techy friends was waving his Nokia 6210i in my face saying, "At least I can make and recieve calls!". So I changed the language on his phone to Turkish when he left it lying about. The old ones are the best.
I am going to test the 1.21.405.2 theory by doing a factory reset later this week when I have time. Problem should persist if it is the new radio. Will post back with the results.

OK did a factory reset this morning. I left all my apps off, and did not set back up any google account business. I basically left it as a standard mobile phone.
Within 7 hours, guess what....yes it's lost the connection again. Strongly believe this is a radio problem. I'm too noob to know if I can flash the radio without rooting. Anyone?
I have since submitted my complaint with HTC CS. Will await their response, and post it here.
In the interim, turning airplane mode off and on again does regain the connection, and I have installed an app from the market place called "No Coverage Alert". It will now beep and buzz if I loose the connection so at least I will be aware every time it bombs out. Far from ideal but should do for now.
Watch this space.

Yes i have tried the two radios posted but i havent tried any international ones such as europe or asia. I still randomly get network drop and i need to turn radio off and back on again for it to pick up.
Maybe i should ask a chef if these drops are logged anywhere on the device so i can root in and look at the logs myself and diagnose what the network drop is on my phone.
Just to confirm, tried multiple radios and roms, i know exactly what i am doing all i would like is explaination of why it happens. It is not user error as i have tried with stock rom, no fancy apps etc to stop it from working or changing config.
its got something to do with the network radio libs that need a service restart. i am 100% sure if i rooted in and knew which service to restart it would work also

Erm.... this is a little embarrassing but I feel I need to own up to prevent misleading anyone. I have arranged with HTC customer support to send my Desire back for repair. They pick it up Monday.
I bought a cheap £10 phone to keep me going. It arrived this morning. After I had finished laughing at it, I put the SIM card in and powered up the phone.
"No SIM card instered" was the message it greeted me with. After numerous power-up and power downs, and some SIM card hoakee-coakee, it finally recognised the SIM card......then dropped the signal to Orange. EXACTLY what my HTC Desire did.
Doh.
I had tried the SIM card in another phone (my girlfriends Blackberry) when the problems first started and it had worked straight away. But the SIM card seems to be random in it's failures. Should have tested more rigorously.
Sorry guys but in my instance it seems I have simply a faulty SIM card. The first one I have ever had go wrong in 12 years, but there you go. I was too fast to blame Android/HTC.
A|ex, please try your SIM card in another handset. Do several power-ups to see if it goes wrong. Would explain why trying numerous radios/ROMs has not helped you.
Let me know?

I had the same issue. Talked all day and evening, then toyed around with the phone a little, flashed a new ROM, no connection. oO okay, that's weird. Tried 3 different ROMs, reset to factory settings. Went to Orange, the SIM was borked. Thankfully, getting a new one took all of 5 minutes and didn't cost me a dime.

Yep. Was the SIM card. The new one arrived from Orange this morning. Popped it in and it's working straight away. My 3G has even improved slightly I reckon.
Six hours of use and not one drop yet.
Thank god for that.

Verizon Galaxy Nexus no data or cell service / Possible hardware problem

Recently i have purchased a used Verizon Galaxy Nexus from a seller on ebay. It is in excellent shape and has no cosmetic damage to the phone. The persone i purchased it from was a reputable seller and had the feedback to back it up. Now with that said. The phone was listed as broken because the seller could not get the phone to connect to the Verizon cell network.
So i bought the phone thinking that maybe the phone had some deleted files on it that i could replace or better yet. Just flash all new software to the phone and remedy the problem. Thus i would have bought a phone for a quarter the price of a new one and have a fully functioning phone.
As far as flashing and roming goes. I am no novice. I have owned many Android phones, in fact thats all ive owned lol, but this one is causing me some frustration. So here is a list of the things i have done to remedy the problem to no avail...
1) Factory Reset- no go
2) Complete Re-Flash of the entire framework - Im talking everything. Careful fastboot flash of every elemet of the android ecosystem
3) Radio swapps from older versions to newer versions.
4) Multiple reboots and toggleing airplane mode over and over again.
5) Flashed several aftermarket roms.
6) Toggled the test mode in phone settings using the hidden menu (*#*#4636#*#*)
For a short period of time last night i was able to get the phone to display up to 3 bars of service using the method described in #6 I NEVER got data working and i could only temporarily call out. My girlfriend would see me calling in on her phone but immediately upon answering it would drop my call. The phone never rang on my end and it cannot receive calls. Also cannot send text messages.
I thought for sure i could fix this one, but for some reason it is being stubborn. Please Help me XDA!!! Your my only Hope!!!
P.S. As an aside i did take the phone apart and check to make sure nothing was damaged. All the components look top shape and all the little snap connectors are securely fastened. No metal contact prongs are bent and everything is clean of dirt and debris.

does it display your IMEI *#06#?
maybe some NV_DATA corrupted or it can be hardware issue

Does indeed show imei and I had it checked for lost / stolen / blacklist by Verizon. At the store now to get it checked out.
And that is actually meid that that code pulls.
Sent from my large and in charge GN2 using Forum Runner

And the verizon store could not do any good. Has anyone ever ordered a replacement back casing from ebay or anywhere else on the web? Im thinking it may be a ribbon cable somewhere. Maybe even the bottom board that houses the headphone jack and a series of winding antenna leads.
I am still open to suggestion though so anyone with any information on the matter please let me know.
EDIT: Been looking at Cell phone repair shop and they have the antenna / headphone replacement in stock. They also have the back mid frame with all the antennas on it as well.
I feel like this is a 50/50 shot in the dark as to which part i need to fix this problem. Gonna give them a call tomorrow and see.

I've ordered a new mid frame in the hopes that there is a torn ribbon cable somewhere in the old one. I'm still not certain that's what it is though.
Anyone with some insight please get back to me.
Sent from my Galaxy Nexus using Forum Runner

Bump.
Still need some help guys. This is a very perplexing problem that i would like to fix.

Anyone? Mods? Admins? Devs? I need some help here. Don't let me down xda!!!
Sent from my large and in charge GN2 using Forum Runner

sounds like a unconnected/torn radio cable to me.

Zepius said:
sounds like a unconnected/torn radio cable to me.
Click to expand...
Click to collapse
I've been all through the device and checked all the connections and hardware. Everything has a firm connection and is in top shape. I even replaced the back midframe cover with a brand spanking new (OEM Samsung) one. Its behaving like a software problem in that I can toggle between 3G and 4G and get 3G for a brief moment and can even call out, but the moment that someone answers the call it drops service and i have to start the process all over again.

UrbanDroid said:
I've been all through the device and checked all the connections and hardware. Everything has a firm connection and is in top shape. I even replaced the back midframe cover with a brand spanking new (OEM Samsung) one. Its behaving like a software problem in that I can toggle between 3G and 4G and get 3G for a brief moment and can even call out, but the moment that someone answers the call it drops service and i have to start the process all over again.
Click to expand...
Click to collapse
Try fastboot flashing the factory images from google.
Sent from my Nexus 7 using xda premium

blackhand1001 said:
Try fastboot flashing the factory images from google.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I've done this as well several times. 4.2.2 and 4.2.1 and yes i made sure i had the correct firmware for my version of the phone. Verizon toro.
Edit: Has anyone ever sent in their phone to Samsung for RMA? I called and talked to someone and tried to work through the problem and she came to the conclusion that I should send it in at no cost and that I wouldn't be charged anything unless I authorized them payment before. Essentially they will run through the phone and check everything out for free and see if it can be fixed.

UrbanDroid said:
I've done this as well several times. 4.2.2 and 4.2.1 and yes i made sure i had the correct firmware for my version of the phone. Verizon toro.
Edit: Has anyone ever sent in their phone to Samsung for RMA? I called and talked to someone and tried to work through the problem and she came to the conclusion that I should send it in at no cost and that I wouldn't be charged anything unless I authorized them payment before. Essentially they will run through the phone and check everything out for free and see if it can be fixed.
Click to expand...
Click to collapse
I did the same thing. Bought one from ebay in good shape. Was told it functions. I have the HTC Rezound so the sim wouldnt fit. Went to Verizon and they put in the mini sim and no service. Reset the phone and even tried a new sim. I have since tried different roms and radios, but still no service. Luckily the seller has a 100% guarantee so looks like this one is going back. From what I have read, these are prone to radio issues.

Sir Lemmiwinks said:
I did the same thing. Bought one from ebay in good shape. Was told it functions. I have the HTC Rezound so the sim wouldnt fit. Went to Verizon and they put in the mini sim and no service. Reset the phone and even tried a new sim. I have since tried different roms and radios, but still no service. Luckily the seller has a 100% guarantee so looks like this one is going back. From what I have read, these are prone to radio issues.
Click to expand...
Click to collapse
Yeah. I've read multiple threads about radio issues, but here's the thing. Every one of them claiming to have signal issues also had the random reboot issue. They all were even having problems flashing any Roms or anything else for that matter.
I on the other hand have had zero problems flashing anything. Fastboot works 100%, Recovery flash works 100% and I can unlock and lock the boot loader without issue. Its an odd problem.
Sent from my large and in charge GN2 using Forum Runner

UrbanDroid said:
Yeah. I've read multiple threads about radio issues, but here's the thing. Every one of them claiming to have signal issues also had the random reboot issue. They all were even having problems flashing any Roms or anything else for that matter.
I on the other hand have had zero problems flashing anything. Fastboot works 100%, Recovery flash works 100% and I can unlock and lock the boot loader without issue. Its an odd problem.
Sent from my large and in charge GN2 using Forum Runner
Click to expand...
Click to collapse
I've had an issue flashing, it would abort for no reason. I would also have issues getting into CWM. After playing around with it all night, I don't think its a software issue. I've been reading the antenna has given other people issues and some have even tried to replace them. a Rep from Verizon thought it was the sim reader. I don't believe that because the phone registers a sim and the number tied to it (which is my number). Under status, I does read different every time.
Network: searching for service
Signal strength is usually at: -120dBm 99asu
Mobile network type: (varies) CDMA - 1xRTT:7 or LTE: 13 or unavailable
Service state: out of service
Roaming: not roaming
Mobile network state: (varies) Disconnected or Connected
I've tried different combos such as CDMA and Home LTE Automatic and so on. I think its just a poor design. Seems to be only the CDMA devices tho.

Did OP ever arrive at a solution or at least pinpoint the cause of this problem? I am currently experiencing a pretty much identical problem to the one described (with the exception that I don't even get a 3G signal -- complete lack of signal). My problem started after a brief Airplane mode toggle yesterday and I haven't been able to get on the network since.
Thanks.

I think it's a hardware problem tbh.
I modded mine to work with the palm pre touchstone inductive charging kit. In the process wires were soldered, rear housings were mutilated and the phone was tortured a bit. I was never happy with Samsung's **** build quality so I eventually just ditched it altogether.
I decided to repair it and give it to a family member so I replaced the back housing and USB port with parts ordered off ebay. Ever since my repair work the thing cosmetically looks almost mint. However no OS will recognize it anymore (windows throws an "invalid descriptor" and won't install a driver) and 3G/4G/wifi reception is almost nonexistent. Switching roms or radios doesn't seem to help, and obviously I can't odin a factory image. Pretty much boned.

pbourdyk said:
Did OP ever arrive at a solution or at least pinpoint the cause of this problem? I am currently experiencing a pretty much identical problem to the one described (with the exception that I don't even get a 3G signal -- complete lack of signal). My problem started after a brief Airplane mode toggle yesterday and I haven't been able to get on the network since.
Thanks.
Click to expand...
Click to collapse
Had a similar problem in regards to a lack of signal. It just completely gave out while driving a couple days ago (interestingly enough, the music I was streaming via Soundcloud stopped right as I passed the Facebook headquarters in Menlo Park, which ironically is a 4G dead zone for Verizon). This was a refurbished replacement device that I got about 15 months ago, and was running the latest OmniMetal rom flawlessly for the last few months.
I arrived at this thread and followed all the steps that OP took to try and fix it. Ended up reverting to an earlier 4.2.2 rom and reflashed the radios thinking that might solve the problem. Upon reboot was able to connect to mobile data and make phone calls briefly, but about an hour later the same thing happened. Brought it to the store and swapped out the SIM card for a new one, no dice.
Fortunately VZW is doing open enrolment for phone insurance, so I added it for $10/month to get an extended warranty. Now I'm going to restore everything to stock, lock the bootloader and send it back for a new one. Assuming there are no problems with the replacement, I can cancel the insurance plan, bringing the cost of the replacement Gnex to just 10 bucks.
Was anyone out there able to successfully modify the radio hardware for cheap?

coltronathon said:
I think it's a hardware problem tbh.
I modded mine to work with the palm pre touchstone inductive charging kit. In the process wires were soldered, rear housings were mutilated and the phone was tortured a bit. I was never happy with Samsung's **** build quality so I eventually just ditched it altogether.
I decided to repair it and give it to a family member so I replaced the back housing and USB port with parts ordered off ebay. Ever since my repair work the thing cosmetically looks almost mint. However no OS will recognize it anymore (windows throws an "invalid descriptor" and won't install a driver) and 3G/4G/wifi reception is almost nonexistent. Switching roms or radios doesn't seem to help, and obviously I can't odin a factory image. Pretty much boned.
Click to expand...
Click to collapse
I did the same mod, and other than losing my pc connection (which frankly is never needed) it's been great. You have to be very careful and take your time. I'm not even convinced that my pc connection issues are related to the Palm mod, I think they just happened to coincide. Either way, I don't need it so I never bothered tracing it down.

[Q] No IMEI

I just purchased this phone a week ago off of Craigslist, the phone worked great up until today. I noticed that I didn't have any service. I use a microcell at home so it was no big deal, thought that it had messed up like it does every now and again, however I got out to town where I usually have near full signal and still had none. I opened up settings and "Mobile Data" was turned off, I tried to toggle it back on and it will not allow me to do this. I went in to the "About Phone" part of the settings and the phone shows "Unknown" for cell phone number and IMEI.
This is the stock AT&T version G Pro that has not been rooted. I contacted AT&T thinking this may be a sim card problem or maybe I bought a stolen phone, but everything on their end seemed to be clean. I tried out a friends sim card and still had no luck. Called LG and they said I would need to send it in with a receipt. I don't have a receipt and I won't pay for them to repair the phone, because I'm sure the bill will wind up being more than the phone is worth.
Has anyone else had this problem? Are their any fixes anyone can think of that doesn't involve rooting the device? If not, what steps will I need to take to recover my IMEI so that the phone will actually make/receive phone calls and texts?

charlee08 said:
I just purchased this phone a week ago off of Craigslist, the phone worked great up until today. I noticed that I didn't have any service. I use a microcell at home so it was no big deal, thought that it had messed up like it does every now and again, however I got out to town where I usually have near full signal and still had none. I opened up settings and "Mobile Data" was turned off, I tried to toggle it back on and it will not allow me to do this. I went in to the "About Phone" part of the settings and the phone shows "Unknown" for cell phone number and IMEI.
This is the stock AT&T version G Pro that has not been rooted. I contacted AT&T thinking this may be a sim card problem or maybe I bought a stolen phone, but everything on their end seemed to be clean. I tried out a friends sim card and still had no luck. Called LG and they said I would need to send it in with a receipt. I don't have a receipt and I won't pay for them to repair the phone, because I'm sure the bill will wind up being more than the phone is worth.
Has anyone else had this problem? Are their any fixes anyone can think of that doesn't involve rooting the device? If not, what steps will I need to take to recover my IMEI so that the phone will actually make/receive phone calls and texts?
Click to expand...
Click to collapse
Are YOU SURE you did not do anything to the phone? Cause loosing an IMEI requires the USER to do something wrong, like flashing other carrier Versions.

hyelton said:
Are YOU SURE you did not do anything to the phone? Cause loosing an IMEI requires the USER to do something wrong, like flashing other carrier Versions.
Click to expand...
Click to collapse
I've had my phone do that before. Wasn't rooted or hacked in any way. I didn't even know of a way to do it. What fixed mine was a **** load of factory resets. And I mean a **** LOAD!!! Luckily it came back and I've been good ever since. Don't know what happened or how but that was very weird.
Note to the wise: I don't care who says what about what! NEVER buy a phone off of craigslist or from anyone for that matter other than a carrier or authorized reseller. Because when it breaks, you can't do **** about it!

hyelton said:
Are YOU SURE you did not do anything to the phone? Cause loosing an IMEI requires the USER to do something wrong, like flashing other carrier Versions.
Click to expand...
Click to collapse
Well I have no reason to lie about something like this. I've only rooted one phone of the dozen or so I've owned and that was a old Galaxy Note.
This morning when I got home from work the phone had 76% battery left, woke up and it was dead. It powered up and showed 2% battery. I went into battery under settings, android system used 26% of the battery. Not sure that's enough to drain the batter while I was asleep.
Must be something definitely wrong in the phone.
Jammol said:
I've had my phone do that before. Wasn't rooted or hacked in any way. I didn't even know of a way to do it. What fixed mine was a **** load of factory resets. And I mean a **** LOAD!!! Luckily it came back and I've been good ever since. Don't know what happened or how but that was very weird.
Note to the wise: I don't care who says what about what! NEVER buy a phone off of craigslist or from anyone for that matter other than a carrier or authorized reseller. Because when it breaks, you can't do **** about it!
Click to expand...
Click to collapse
Yeah, lesson learned. Craigslist is usually where I do my cell phone trading and buying.
I'll keep trying resets to see if this fixes the problem. Thanks!

Try to re flash a stock using an LG flash tool it might work as what other users did on their G Pro have the same issues

Still haven't found anything that works.
I'm guessing something has malfunctioned in the phone.

Bootloop issues on 13B....Due to motherboard

As most of you know its an issue with phones with a serial of 505 and H/W Rev 1... Didn't know it would happen on Verizon or not... Well i can confirm it. Was browsing YouTube and it randomly froze. Now all it does it bootloop. Verizon was cool to deal with on the issue and didn't try to claim it wasn't a problem.

Surprised no one has asked or said anything...

That sucks. I got a 507 serial, so I hope I will be spared. But it will be difficult if you paid off the phone and are not associated with Verizon anymore. Then you have to mail the phone to LG, and I heard their repair service is pretty spotty.

Still under manufacturer warranty. I am thinking of buying out the phone and going to Googles project fi. Verizon is getting too expensive and big for their britches....

I have a 505 but I am still on he original firmware. I think it is the 10B. Is it the firmware version that causes the problems? I have delaying the update since I got the phone in November.
Sent from my VS986 using Tapatalk

wekurtz74 said:
I have a 505 but I am still on he original firmware. I think it is the 10B. Is it the firmware version that causes the problems? I have delaying the update since I got the phone in November.
Sent from my VS986 using Tapatalk
Click to expand...
Click to collapse
100% sure the answer is no - firmware has nothing to do with it. I had a 505 since the day it was released and I was still running 10B too when the dreaded bootloop issue hit my device a couple of weeks ago. I know others who were running upgraded firmware on Verizon and they got the bootloop issue too.

Yup i got the issue of it bootlooping. I got my replacement every time i do alot of thi gs on my first g4 it will freaze and reboot then a bootloop for a bit

Happened to me in Thursday night. Got my replacement today. I was on rooted 13B on 505

dman1049 said:
Still under manufacturer warranty. I am thinking of buying out the phone and going to Googles project fi. Verizon is getting too expensive and big for their britches....
Click to expand...
Click to collapse
I have been kickin around the idea of switching to project FI also because Verizon is so damn expensive. But I still have my unlimited plan with Verizon, also I am concern with poor coverage.
I also just got mine back from warranty repair this weekend,

The coverage is a little less abundant than Verizon. I noticed I've used less data since going to project Fi. I don't feel like I need to get my moneys worth out of my plan every month.

My Verizon LG G4 505x/v1.0 hardware "pre-order" hit the bootloop issue today. It started with a random reboot while I was going to lunch, another reboot a minute later, then 30 seconds of straight vibrating, then... dead. I've gotten it to show a battery symbol when plugging it in since then, and now it does the same bootloop everyone has mentioned. I've started a replacement via Best Buy's Geek Squad, otherwise I have to mail the phone out to LG, wait for them to assess it, then send me one back. It's already 5-7 days because they're backlogged... which makes me wonder if tons of these have started failing or if stock is just low because the V10 came out a while back.
Does anyone know if Best Buy or Verizon can connect (JTAG method?) to the old phone and extract data from internal storage when it's stuck like this?

LG g4 verizon stuck in bootloop. Pretty much the same thing, I was using an app and it froze and now is stuck.
After a few phone calls Verizon is replacing the device. It was painful though. I had to play dumb and act like I was doing everything "tech" support asked me to do. Even though I already tried everything.
Now the question is with my phone being rooted will they still replace it. Ive had to do a warranty replacement a couple years back and didnt have a problem. Ill update everyone.

This happened to mine about a month ago. I don't know what the serial number was on it, but I got it at Launch. My wife's G4 started having this problem on Friday and her serial number starts with 506. VZW is shipping another.

eastmesawhat said:
LG g4 verizon stuck in bootloop. Pretty much the same thing, I was using an app and it froze and now is stuck.
After a few phone calls Verizon is replacing the device. It was painful though. I had to play dumb and act like I was doing everything "tech" support asked me to do. Even though I already tried everything.
Now the question is with my phone being rooted will they still replace it. Ive had to do a warranty replacement a couple years back and didnt have a problem. Ill update everyone.
Click to expand...
Click to collapse
I sent mine back, it was rooted so we'll see if Verizon charges.

Temporary fix that might work for you guys
I decided to see if I can get my data off my phone using any means necessary and I do mean any means necessary. I was able to get my data off my phone by baking the motherboard. I've included a crappy YouTube video that I made in order to show you that it does work. Hope this helps people out that want to get their data off the phone before they throw it away.
youtu.be/MPDVynnH0zg

International model Bootlooped/won't turn on, LG USA doesn't take it, what do

Needed a phone to fill the app-gap coming from Windows(don't judge) until contract expires, and bought a H791 5X on ebay last October. (more on that). Works very well for about 8 month, then it started bootlooping. Searched XDA and found thread by xcnathan32, managed to revive it. Yesterday it was updating apps(not OTA security patch), dropped dark, and won't turn on at all. Held power+vol down until fingers turned blue, and maybe 1 in 20 chance it will light up, warns that bootloader is unlocked, then stop responding and drop dark again. Twice I got it to get to recovery screen, but it froze on one occasion, and on the other occasion shows a weird orange line towards bottom of screen, and I wasn't able to flash anything before it froze again.
As I'm fairly certain this is a hardware issue, I tried chatting LG support. Gave them IMEI, and they say this is a international phone, so LG USA won't support it. chatted with Google, really nice service, but when I gave them IMEI they couldn't bring up any warranty option since they don't have my IMEI in inventory...suggested calling LG support. Just called them, and they checked IMEI and said the same thing from chat(they even greeted me by name without me saying a word), but they did tell me my IMEI belongs in JAMAICA. YeahMan. Or...NoMan?
So I'm running out of options - what should I try next? give up? Go the Chinese route for repair?(and 4GB upgrade?) new ones are on ebay for ~230 so repair in US doesn't make much $ sense...
TL;DR: got international 5x, bootlooped, no repair from LG/Google, what do?