Database Develop

[Q] [Droid3 xt862] don't find any GSM signal

Dear All
I 2 months ago buy a droid3 xt862 to use in EU (in poland) and all was ok
they find lot of gsm networks signal was ok... to yesterday
I wanted to check something in *#*#4636#*#* and i change
in Phone information / set preferred network type -
from GSM auto (prl) to WCDMA preferred
I change it back to GSM auto (PRL), but now phone dont see any GSM
network, still see SIM card but when is instaled and when is not..
I flash once again the phone, do a factory reset in recovery.. and still nothing..
img268 . imageshack.us/img268/1258/droid3global . jpg
please if somebody have idea how to help me .. pls

**UP**
Maybe will be usefull for somebody
I fix the problem, i used moto-fastboot.exe and re-flesh the radio.img
now again all works perfectly GSM / 3G etc ,

Thanks for that info!

[Q] I8190N no signal no network!!!!

Hello!
I have samsung I8190N new !!! but have problem ... mobile phone not see any provider i don't see signal ( *#0011# no service ).
i did unlock , i have imei...
i did any firmware via odin ( pit code csc ).
help me please!!!!
thank you
param.tar for I8190 its same for I8190N?

I have the same problem
I have the same problem,any help idea?? I have Signal,if i search the netowork manualy my phone find the netowork and wen ai select the network no registering on the network. The Phone have the good imei, good baseband but no service. On service mode say gsm:idle Hsdpa: Idle . I tray with many sim cards. Any Help please...

joker79 said:
I have the same problem,any help idea?? I have Signal,if i search the netowork manualy my phone find the netowork and wen ai select the network no registering on the network. The Phone have the good imei, good baseband but no service. On service mode say gsm:idle Hsdpa: Idle . I tray with many sim cards. Any Help please...
Click to expand...
Click to collapse
I got the same problem. tried almost everything and nothing worked out....don't know what to do

No signal.

Hello. Before few days i was on zeus 6.4o and sudenly there was no signal.(red x on status bar). Tryd re-insert card but that did not help.
Today i flashed zeus 1.1 and started to work for few mins but then again...signal lost. Waited and then signal come back for few minutes.
So...my phone has singal for two mins and then dose not for 30 min, Its not carier/provider problem....anybody with same carier have good signal.

Update...i can get weak signal in wcdma...
gsm and gsm/wcdma (auto mode) dont work. Whats wrong with my phone?

have you flash your good country baseband , check your apn carrier settings

What i need to check in apn settings? ive never flashed baseband. Any tip /guide please?
and big thxs.

you need check apn settings :
APN :
MMSC :
MCC :
MNC :
Type d’APN :
flash baseband , you need .fls for your country and use Smart Flash tool => http://forum.xda-developers.com/showthread.php?t=1448803
for extract .fls : use lgrom converter => http://forum.xda-developers.com/showthread.php?t=1692191
and stock rom .kdz => http://lg-phone-firmware.com/index.php?mod=Lg+Optimus+Black&paese=Tutti&id_mod=1
then it's possible hardware

sadly my phone is useless... GSM dont work after baseband flash /rom change. WCDMA works slightly but drains battery like hell. Now i can use p970 as tablet camera,wifi,apps,movies and music.
Think that its hardware problem....before few days i was so drunk that i felt down on the ground. Maybe thats the reason why it dont work.
p.s APN settings are fine...

Restored IMEI now no network issue

Hi XDA,
I have a Galaxy GT-P1000
My locality is New Zealand
Currently flashed;
2.3.6 stock firmware
Baseband JPZ modem
I recently messed up and didn't save efs while flashing and ended up with 0049. I paid a guy to fix it for me and IMEI is showing up correctly now. Serial # is still 000's.
My issue is;
With a correct brand new sim (and others tried) While signal is showing, I have no network, Under Settings -> About Device -> Status;
Phone Number : Unknown
Network : Unknown
Signal strength : (good)
Mob Network Type : HSDPA
Service State : Out of service
Roaming : Not Roaming
Mobile Network State : Disconnected
IMEI : (correct)
Serial number : 000's
I cannot make any phone calls, even toll free or to network support. 5 days ago this tablet was working on a network before flashing it.
Any help would be greatly appreciated. Thank you

You could try re-flashing the tab. There is a threads on re-stocking gsm tabs back to stock. If that doesn't work you could try manually programming the tab via the memo app. Open memo > in the search box type **772, that should open the programming menu. Thats as much as i know. You have to take it from here.
Sent from the Galaxasaurous tabalonicus Rex

Possibility of change LTE CA bands?

Hello,
I tried to change LTE Advanced Carrier Aggregation bands by QPST and QXDM using instruction from Lenovo P2 (https://forum.xda-developers.com/lenovo-p2/how-to/enabled-4g-ca-p2-t3707584).
Everything looks ok, but in QXDM there isn't a RF-LTE category or by using other version I'm getting an error "nv status error received: no such file or directory".
Is it possible to change LTE CA bands in SD660? In my country I saw only 2100 + 1800 CA (800, 1800 and 2600 not working).
The modem must store information about CA bands, but probably in other place in Mi A2.
Cheers

Good question, want to know the same !

Can you find via QPST the 00028874 nvitem and share this file? I have instruction here: https://mt-tech.fi/en/how-to-get-4g-supported-ca-combinations-from-your-android-phone/
In this nvitem can see what CA combos your Lenovo hardware support. Theory there is way to edit this file to change hardware supported combos but could cause issues...