Database Develop

HELP: No signal (voice or data)!! =(

Hi, I bought a Cappy in december, I rooted, unlocked it (I'm not in the US) and installed Cognition 2.3b8 first, then moved to 3.X, everything was perfect, but yesterday I started with dropdowns in data service then the whole service, I have signal (changing to out-of-service), but I can't make/receive calls, send messages or get data connection, today I flash the phone back to stock and even in stock I have the same problems, also I already try different modems without luck.
Is this a hardware issue?
Thanks!

Give this a try
http://forum.xda-developers.com/showthread.php?t=884364

Thanks...but I know how to install a custom ROM, I already tried Serendipity, Cognition and changing Kernel to SpeedMod and Firebird and different radios (ZNKP1, JK4, JL2, JL1, JL3) and no luck

Have you confirmed that your phone is still unlocked after flashing back to stock?
Check your IMEI number to see if you don't have the generic one.
Check product code to see if it's not botched also.

Xstop said:
Have you confirmed that your phone is still unlocked after flashing back to stock?
Check your IMEI number to see if you don't have the generic one.
Check product code to see if it's not botched also.
Click to expand...
Click to collapse
Well, after installing stock, I insert my SIM back and did not ask for the unlock code, so I assume it's still unlocked.
My IMEI is the same as in the box and IMEI SV = 01
Where can I check product code??

Try *2767*4387264636#

Thanks! Product code is SGH-I897ZKAATT

Everything seems right, if I had to guess... It's more on the unlocking issue after you flashed Froyo with your network.
Try referring to this: http://forum.xda-developers.com/showthread.php?t=831569

I just checked network status screen and everything is off, so the phone it's unlocked :S

Sorry I can't provide you with any more help brotha.
You don't have a corrupted nv_data.bin file, which is good.
Your IMEI number is correct, which I suspected first, cause there were discussion of the generic IMEI number not working on other networks besides AT$T.
Since it doesn't matter what rom, kernel, modem combination you use with no avail.
I would wait to see if someone else chimes in here that might have other ideas.
Things I would do though: Call to see if there is any outages.
Update through kies to see if you get service from the update.
Hope its not hardware related.
Sorry again and good luck. I will keep on searching for ya though

Xstop said:
Sorry I can't provide you with any more help brotha.
You don't have a corrupted nv_data.bin file, which is good.
Your IMEI number is correct, which I suspected first, cause there were discussion of the generic IMEI number not working on other networks besides AT$T.
Since it doesn't matter what rom, kernel, modem combination you use with no avail.
I would wait to see if someone else chimes in here that might have other ideas.
Things I would do though: Call to see if there is any outages.
Update through kies to see if you get service from the update.
Hope its not hardware related.
Sorry again and good luck. I will keep on searching for ya though
Click to expand...
Click to collapse
Thanks for your help!!

Guide - Unlock XT862 for T-mobile/ATT

Thought I would share based on my experiences on trying to get this phone to work on t-mobile. It works on ATT 3g/T-mobile Edge, but still a pretty cool phone to have.
Also another note, this is a mod that will only go through on Windows. You will need ROOT EXPLORER app for this method to work.
1 - Make sure you are on the stock XT862 ROM, if you aren't flash it via this method found here: http://rootzwiki.com/topic/4370-sbf-droid-3-fastboot-files-55959-and-56890/
2 - Make sure your phone is rooted, if not download the following and follow the steps found here: http://www.psouza4.com/droid3/
3 - Unlock the phone. This can be accomplished by purchasing the unlock code, and later entering the code upon insertion of a sim card. (T-mobile ATT sim cards will work, but you will get an error saying UNLOCK FAILED, this is NORMAL do not freak out)
4 - Download the following files and unzip it to your desktop: http://www.mediafire.com/?y1wjw775v8itsx3
5 - Click Start and open cmd.
6 - Type in the following in cmd:
'cd desktop'
'cd fastboot'
'moto-fastboot flash radio radio.img'
ONCE it flashes, then enter:
'moto-fastboot reboot'
7 - Use root explorer to push the build.prop into the system folder
8 - Reboot, select GSM/UMTS in Network Settings.
AND BAM now it works. If there is any confusion please let me know.

Nice! Is that the XT883 radio you're flashing or a real unlocked (and signed) XT862 radio?
Also - change
Code:
ro.mot.phonemode.vzwglobalphone=1
to
Code:
ro.mot.phonemode.vzwglobalphone=0
in build.prop to get normal reading on signal strength indicator.
You can also change
Code:
ro.telephony.default_network=7
to
Code:
ro.telephony.default_network=3
so phone starts automatically in GSM/UMTS mode after hard reset.

Can anyone confirm that it's running on AT&T with 3G/4G?
Sent from my Droid Razr using xda premium

MeNaCe2s0cieTy said:
Can anyone confirm that it's running on AT&T with 3G/4G?
Sent from my Droid Razr using xda premium
Click to expand...
Click to collapse
it has att 3g bands you can check for yourself over at gsm arena.

leobg said:
Nice! Is that the XT883 radio you're flashing or a real unlocked (and signed) XT862 radio?
Also - change
Code:
ro.mot.phonemode.vzwglobalphone=1
to
Code:
ro.mot.phonemode.vzwglobalphone=0
in build.prop to get normal reading on signal strength indicator.
You can also change
Code:
ro.telephony.default_network=7
to
Code:
ro.telephony.default_network=3
so phone starts automatically in GSM/UMTS mode after hard reset.
Click to expand...
Click to collapse
Thanks man I'll reupload when I get back home with the edited bits . It is the XT883 radio.

Nice Guide!
I've read some people have had trouble unlocking the D3....and apparently it could be due to it being used on the Verizon network who then alter the unlock code via some update.
Anyone know if there is any truth in this? (I'm awaiting the delivery of a used D3 so would be handy to know).

fl4r3 said:
Nice Guide!
I've read some people have had trouble unlocking the D3....and apparently it could be due to it being used on the Verizon network who then alter the unlock code via some update.
Anyone know if there is any truth in this? (I'm awaiting the delivery of a used D3 so would be handy to know).
Click to expand...
Click to collapse
Even after the update, if you restore it to the first link and then follow the steps, you will be fine. It can still be unlocked.

Awesome! I am about to try this on my friend's droid 3. Are there issues with the market (as some have mentioned in a previous thread)?
---------- Post added at 12:10 PM ---------- Previous post was at 12:00 PM ----------
I am stuck on <waiting for device> in the command prompt after telling it to flash the radio. What sort of USB connection should I be selecting?
EDIT: I'm an idiot.... I figured it out!

Is anyone else who is using this method on AT&T experiencing super slow data speeds? I have tried the sim card in an at&t branded phone and it seems to work ok. On the Droid 3, I am getting a ping of 2500~ ms, and speeds in the 15-60kbps range.

I can't seem to add an APN and connect to the 3G network. Does anyone else have this issue? I am using a Bell SIM at the moment

Follow all the steps, no luck here
When I put the unlock code, phone shows for a sec "requesting unlock" and goes back to a subsidy lock message with a discard dialog box.
After that, I followed all other steps, and still enter unlock code appears
Any ideas?
I dont have an att sim card, Im just using foreign sim cards cause Im outside US.

geek_riot said:
Is anyone else who is using this method on AT&T experiencing super slow data speeds? I have tried the sim card in an at&t branded phone and it seems to work ok. On the Droid 3, I am getting a ping of 2500~ ms, and speeds in the 15-60kbps range.
Click to expand...
Click to collapse
You can always call the carrier and make sure they are allowing your phone to connect. I'm not sure if this is the problem, but I read about another AT&T branded 4G phone (the D3 will never get 4G) getting only edge because the carrier thought it was foreign, and they just called in and gave the IMEI number to get access.
The customer service rep may not understand your problem, but just tell them the truth that you want to use your compatible device on your valid account and they should redirect you to someone who can help.
I can verify this works on T-Mobile and AT&T since I've tested it on both. Didn't test 3g on AT&T though cuz I didn't think about it lol. I know it allows the connection to umts in the settings though.
The OP poster helped me get it working on my phone just make sure you follow the directions closely and it's pretty simple. If your unlock codes aren't working because you got them off the internet, you may need to have the phone put on Verizon temporarily to get them to give you a code. Just ask a friend with a valid account to help you out.
Good luck to everyone, this is a great hack that definitely saves some money while letting us use this cool phone. I will have to edit my build.prop as mentioned above to fix the reboot network loss problem, thanks for that as well!
Droid 3 with stock xt862 ROM working on T-Mobile via xt883 radio.img & custom build.prop

If verizon changed the codes while phones are connected to his network, changes could only be stored on a new bootloader.
There is no other unwritable part on the phone.
Wonder if the original poster used an ebay code or a verizon one...

Nice job! Pretty amazing what can be done with fastboot and signed radio images!

Custom ROM
What will happen if somebody follows this procedure and unlock the phone for AT&T but afterwards flash another rom? Will the radio still be unlocked for AT&T?

koukobin said:
What will happen if somebody follows this procedure and unlock the phone for AT&T but afterwards flash another rom? Will the radio still be unlocked for AT&T?
Click to expand...
Click to collapse
As long as that ROM you're flashing does not have radio image in it, you should be fine. If you meant sim lock - once unlocked, it will remain unlocked forever.
Sent from my HTC Desire Z using Tapatalk

I was asking about radio unlock, i know sim unlock is permanent. But has anyone tried to install any rom after the radio unlock and if yes which one?
thanks

koukobin said:
I was asking about radio unlock, i know sim unlock is permanent. But has anyone tried to install any rom after the radio unlock and if yes which one?
thanks
Click to expand...
Click to collapse
Just as @leobg said,
leobg said:
As long as that ROM you're flashing does not have radio image in it, you should be fine...
Click to expand...
Click to collapse
Now, I haven't tried flashing another ROM since flashing the xt883 radio.img, because I really don't mind the stock ROM with some build.prop tweaks and the help of Zeam Launcher. I would assume that any ROM you flash would cause the build.prop and radio.img to be replaced with new ones, made specifically for that ROM. You should probably consult with the developer of the ROM you want to use, and ask them if the build.prop changes specific to this process will have issues with their ROM. The xt883 radio.img shouldn't have any conflicts, but I believe it will still require the custom build.prop file which is found in the OP, or at a minimum the specific changes which allow this tweak to work.

BenSWoodruff said:
Just as @leobg said,
Now, I haven't tried flashing another ROM since flashing the xt883 radio.img, because I really don't mind the stock ROM with some build.prop tweaks and the help of Zeam Launcher. I would assume that any ROM you flash would cause the build.prop and radio.img to be replaced with new ones, made specifically for that ROM. You should probably consult with the developer of the ROM you want to use, and ask them if the build.prop changes specific to this process will have issues with their ROM. The xt883 radio.img shouldn't have any conflicts, but I believe it will still require the custom build.prop file which is found in the OP, or at a minimum the specific changes which allow this tweak to work.
Click to expand...
Click to collapse
Aslongasyoukeeptheradioandbuild.propchnges
Yikesmyspcebarisfiling and some"a's"
Enviado desde mi DROID3 usando Tapatalk

Will loading XT883 radio undo the wifi-hotspot hack?

xt862 Problems with radio

Hello. I have a problem with the droid 3 xt862. The phone is locked by verizon. The problem is that it has a software fault with the radio. In the setting of an android - "baseband version - unknown". IMEI - empty, the hardware menu * # * # 4636 # * # * in the phone info shows - unknown, disconnected, out of service, false. Unlock also does not work - after insert sim card - nothing happens, after entering the code to unlock # 073 887 * - "The process com.android.phone has stopped unexpectedly. Please try again"
I tried to flash swu with rsd, tried to flash other roms,tried to flash via recovery, bootstrap, safestrap , tried to "Flash Verizon DROID three OTA 5.6.890 to phone_psouza4", tried to flash a different radio.img - always in the baseband version - unknown.
P.S. I apologize for my English.

Has it ever worked on Verizon in your possession, or did you buy it this way? If you bought it this way you could probably send it back under warranty. I would definitely try to use this method http://forum.xda-developers.com/showthread.php?t=1339816 to flash back to stock. If it still has problems after flashing that way, then try to send it in anyway and see if they'll replace it.
If you bought it that way from someone else, try flashing using the above mentioned method and see if it works.
If it doesn't work or if it got this way because of you messing with the radio, I have no clue what else to do to fix it. Seems like it's above my level.
P/S: to unlock the phone using a Verizon unlock code, I believe the phone must be connected to an active line of service so that it can communicate with VZW. Entering the code only prompts the phone to communicate with them so they can unlock it from their end. So, it kind of makes sense that it would have no service whatsoever and that inserting a SIM would do nothing if the phone has no service from VZW and hasn't been unlocked.

BenSWoodruff said:
Has it ever worked on Verizon in your possession, or did you buy it this way? If you bought it this way you could probably send it back under warranty. I would definitely try to use this method http://forum.xda-developers.com/showthread.php?t=1339816 to flash back to stock. If it still has problems after flashing that way, then try to send it in anyway and see if they'll replace it.
If you bought it that way from someone else, try flashing using the above mentioned method and see if it works.
If it doesn't work or if it got this way because of you messing with the radio, I have no clue what else to do to fix it. Seems like it's above my level.
P/S: to unlock the phone using a Verizon unlock code, I believe the phone must be connected to an active line of service so that it can communicate with VZW. Entering the code only prompts the phone to communicate with them so they can unlock it from their end. So, it kind of makes sense that it would have no service whatsoever and that inserting a SIM would do nothing if the phone has no service from VZW and hasn't been unlocked.
Click to expand...
Click to collapse
I've already tried this method - successfully flashed (radio.img too), but there is no effect, baseband version - unknown and all the problems.
Thank you for your reply.
p.s. return is not possible, unfortunately.

w4_toleg said:
I've already tried this method - successfully flashed (radio.img too), but there is no effect, baseband version - unknown and all the problems.
Thank you for your reply.
p.s. return is not possible, unfortunately.
Click to expand...
Click to collapse
This phone has a 1 year warranty from Motorola (software included). If it doesn't work and has not been physically damaged, water damaged or has a bad ESN, Motorola will replace it. If you can't go through Verizon (no contract), then contact Motorola directly for a replacement.
Side note: If/when you send it back to Motorola, make sure it is bone stock and unrooted as this would clearly void the warranty.
Sent from my XT862 using XDA App

Sounds like they haven't even unlocked the phone from Verizon yet. Nothing will help this phone work on another carrier (other than Vodafone) if it hasn't been unlocked by Verizon. I mentioned above what to do if you can get a code from Verizon, otherwise good luck finding some code online somewhere.
I may be wrong, but even if you have a Verizon unlock code, I don't think it will work unless the phone is connected to a valid account, temporarily so it can communicate with VZW.

I have the same issue with my Droid3, help please

lost 3G edge2 work fine
eldar4uk said:
I have the same issue with my Droid3, help please
Click to expand...
Click to collapse
I've tried a lot of time: wipe factory/wipe cache/dalvik but nothing 3G. I've also unistalled safestrap. PLEASE without 3G is very frustrant!!!

neither can make or recieve call when my network is set to GSM/WCDMA/LTE auto mode

I have a LG G Flex model LG-D958. I have this weird problem with making or receiving phone call. If I set the network mode to only GSM mode, then I can make call out and receive incoming phone call. Other than this setting, example when set to GSM/WCDMA/LTE auto mode, I could only access the internet network in WCDMA or LTE or EDGE mode for DATA access BUT could not receive or make phone call. If I make a call out, it will cut off after several seconds. When I tried calling to my this mobile number from another phone, I could only hear the annouced voicecall telling me that it could not be reached at the moment. Then, when I set it back to GSM only mode..then making or receiving call is back to normal.
My ANdroid version is 4.4.2. Can someone advise me what I can do to get my Flex works again? Thank you

This is an L23? Where are you located? Its to my understanding those are sold gsm Sim unlocked.
Is this a new Sim card? Is it a GSM network Sim?
Have you changed the software at all?

Call problems under different network mode
Supertacomonkeyexplosion said:
This is an L23? Where are you located? Its to my understanding those are sold gsm Sim unlocked.
Is this a new Sim card? Is it a GSM network Sim?
Have you changed the software at all?
Click to expand...
Click to collapse
My model is LG-D958. I am not too sure what you meant L23?
I am from Thailand but currently in Malaysia.
Yes, this model is sold in THailand with open sim.
Yes, it is a new Sim card with GSM network that include 3G/4G network access.
THe software I see from the phone setting is D95820d-IND-XX; Android version is 4.4.2
appreciate your help..thanks

I'm not sure why you would have to change these radio settings at all. It should work right out of the box, except for your carriers specific APN settings.
Have you tried a factory reset? Start from scratch? Have you made any software changes?

Supertacomonkeyexplosion said:
I'm not sure why you would have to change these radio settings at all. It should work right out of the box, except for your carriers specific APN settings.
Have you tried a factory reset? Start from scratch? Have you made any software changes?
Click to expand...
Click to collapse
Yes, it supposed to be.. I mean it works for everything except cannot make call if I set it to GSM/3G/4G auto mode. I have done a hard reset but the problem still persists. I was given this phone by my cousin and I am not sure whether any softwares was changed BUT I understand that the original Android version should be 4.2.2 - but now it is 4.4.2, do you think this could be the reason that is the cause of this weird problem?
Maybe it is good to totally unflash and reflash it back to its original software version. Can you guide me to doing this?
THank you

Or is there any way that i can run a diagnostic test from within the phone itself? Please advise too, thank you

davidmok555 said:
Or is there any way that i can run a diagnostic test from within the phone itself? Please advise too, thank you
Click to expand...
Click to collapse
According to the lg website it should only be on 4.2.2.
http://m.lg.com/au/smartphones/lg-G-Flex-D958
I think a fresh start using the lg flash tool would be best.
Make sure you get the right firmware/tot, for your model.
Can you ask ,whomever you got the phone from what and why he changed the software?

Supertacomonkeyexplosion said:
According to the lg website it should only be on 4.2.2.
http://m.lg.com/au/smartphones/lg-G-Flex-D958
I think a fresh start using the lg flash tool would be best.
Make sure you get the right firmware/tot, for your model.
Can you ask ,whomever you got the phone from what and why he changed the software?
Click to expand...
Click to collapse
Yes, I have tried flash already but that only update the phone firmware BUT the Android version could not be changed? Any guide as to how I can flash the entire phone to its original firmware that comes with Android Version 4.2.2.? Thanks

Anyone can help advise me how I could downgrade android version 4.4.2 to 4.2.2. in my LG Flex Model LG-D958?

davidmok555 said:
Yes, I have tried flash already but that only update the phone firmware BUT the Android version could not be changed? Any guide as to how I can flash the entire phone to its original firmware that comes with Android Version 4.2.2.? Thanks
Click to expand...
Click to collapse
Hi..can you advise? Thanks

davidmok555 said:
Hi..can you advise? Thanks
Click to expand...
Click to collapse
On the LG website, or ask someone on the L23 section. Someone may have posted it already.

Can anyone help? Where can I find the necessary steps to do a re-flash?

How should I downgrade or enable GSM/WCDMA option on Sprint LG G4 LS991?

Hey, guys this is my first post here on XDA so please apologize me for any inconvenience.
I bought LG G4 Sprint i.e., LS991 yesterday from someone else I don't have contact with him now. The sim card which works on 3G was working fine when I bought it. But, then I tried to go in settings and then to mobile network and I opened the list of network bands and unfortunately I was only able to find only two option that are 1. CDMA/LTE and 2. CDMA.
I was forced to select one from it and boom no signals at all and status says searching for service. Where is the GSM option? I'm sure that this phone is already unlocked and it is from Sprint.
Also, I'm on the latest software version that is LS991ZVD. Can I go back to ZV6 International ROM or will it brick my device?!

emad26 said:
Hey, guys this is my first post here on XDA so please apologize me for any inconvenience.
I bought LG G4 Sprint i.e., LS991 yesterday from someone else I don't have contact with him now. The sim card which works on 3G was working fine when I bought it. But, then I tried to go in settings and then to mobile network and I opened the list of network bands and unfortunately I was only able to find only two option that are 1. CDMA/LTE and 2. CDMA.
I was forced to select one from it and boom no signals at all and status says searching for service. Where is the GSM option? I'm sure that this phone is already unlocked and it is from Sprint.
Also, I'm on the latest software version that is LS991ZVD. Can I go back to ZV6 International ROM or will it brick my device?!
Click to expand...
Click to collapse
Bro, I found this on this site:
1. go to settings and add new APN manually (fill the values according to your carrier).
2. in the APN type input "default,dun,fota".
3 .save.
4. Restart phone and you are good to go.
Works like a charm... The signal loss thing happened to me too. Don't select either option after you fix it. Go to backup and reset and reset your network settings. I think this is what I did to solve the problem.

emad26 said:
Hey, guys this is my first post here on XDA so please apologize me for any inconvenience.
I bought LG G4 Sprint i.e., LS991 yesterday from someone else I don't have contact with him now. The sim card which works on 3G was working fine when I bought it. But, then I tried to go in settings and then to mobile network and I opened the list of network bands and unfortunately I was only able to find only two option that are 1. CDMA/LTE and 2. CDMA.
I was forced to select one from it and boom no signals at all and status says searching for service. Where is the GSM option? I'm sure that this phone is already unlocked and it is from Sprint.
Also, I'm on the latest software version that is LS991ZVD. Can I go back to ZV6 International ROM or will it brick my device?!
Click to expand...
Click to collapse
you cannot downgrade has antirollback yuo will brick possibly hardbrick.
i dont know the method but i believe there is possibility even without root but dont quote me on tht
as mine has managed to stay on zv6 since day one