cant get gsm network after updating to 6.01 - Sprint Galaxy S 5 Q&A, Help & Troubleshooting

my sis updated her unlocked sprint S5 to 6.01 now sis not getting any signal on her phone, even after selecting GSM in network settings.......is there a way to fix this....any help will be greatly appreciated.
She not on the sprint network.....she had it on digicel in jamaica

dreaddie101 said:
my sis updated her unlocked sprint S5 to 6.01 now sis not getting any signal on her phone, even after selecting GSM in network settings.......is there a way to fix this....any help will be greatly appreciated.
She not on the sprint network.....she had it on digicel in jamaica
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Flash modem files on odin, but first take an efs backup.

Related

[Q] Unlocked to TMO now can't get lte with AT&T

Unlocked D850 for TMO now I can't get LTE with AT&T, TMO LTE works fine. I have both AT&T and TMO sim cards . I'm running Stock KK rooted . I did upgrade to lollipop and still no LTE on AT&T, but lost root so I downgraded back to KK via LG Flash Tool.
I tried a few different APN's with no luck. IDK any help would be appreciated
jaymn88 said:
Unlocked D850 for TMO now I can't get LTE with AT&T, TMO LTE works fine. I have both AT&T and TMO sim cards . I'm running Stock KK rooted . I did upgrade to lollipop and still no LTE on AT&T, but lost root so I downgraded back to KK via LG Flash Tool.
I tried a few different APN's with no luck. IDK any help would be appreciated
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Which APN's did you try??
I tried the nxtgenphone that was the default one when I put my AT&T sim in. Also tried "phone", this one I get 4g but not lte. I also found one that was either "pto" or "pta" I think it was "pta" this one I get no data at all, same with the "nxtgenphone"
http://forum.xda-developers.com/showpost.php?p=59377527&postcount=1885

S6 Edge At&t unlocked No update and LTE signal

Sir I purchased a new unlocked S6 Edge ( 925A) at&t device from abroad to use in india.
The guy told it's fully unlocked and it support any sim card. Buy when I checked with Indian Sims I am getting only 2g signals .. I am not getting 3G and 4g signals..
When I checked for network selection mode settings it's missing in the settings.
No software OTA update is available. . I think it's also disabled.. when I checked the device status it is in "custom"..
So if I flash a stock ROM with Odin will it lock again ?
Do I need to unlock it again.. ??
First check the model from bootloader, if its actually a att variant then you can flash a stock rom too make it work as normal, but if its some other variant then get back to this thread again.
Its surely an at&t Variant of Samsung Galaxy S6 EDGE.. its model number is 925A.. which is only available for ATT..
Its baseband version is G925AUCU1AOCE
I purchased this phone as fully unlocked from UAE but in india when i start to use it i came to know that its not taking 3G and 4G signals .. but 2g Signal and Data services are working fine..
I got the phone in rooted condition without any Boot animation of At&t. Since its rooted i am not getting any official updates.
I am also facing many software bugs.. from different apps..
So really want to flash the phone with a new stock rom for using it..
I have some doubts about it please clear it..
1) if i flash it with an official att stock rom will it lock again for att network ?
2) can i remove the att boot animation after flashing with stock rom ?
Sent from my SM-925A using XDA Free mobile app
Providers in India use bands 3, 40, and 41 for LTE. The AT&T S6 Edge is only compatible with band 3.
I doubt you'd be able to flash a different ROM, and even if you could, you still wouldn't have compatibility with bands 40 or 41.
Firstly Thanks for your reply.. i know that S6 Edge at&t only support Band 3 LTE cuz it's a FDD LTE supported device.. in my country here providers are using both TDD & FDD LTE bands for LTE..
In my region "Kerala" at presently all the providers are using Band 3 which is compatible will my phone. But i am not receiving any LTE and 3G signals..
My friends have different unlocked phones from T-Mobile they are not facing any problem..
I am still doubt the flashing ROM.. i am going to flash the stock rom for at&t.. it's the only official rom available for my device.
It could be an APN issue. Make sure the settings are the same as your friends are using. Beyond that, I have no idea.
Nothing Wrong with the APN.. cuz i am using 2G data without any problems.
We have same APN for all 2G ,3G & 4G..
I think its the problem with my software..
I can't switch between LTE/WCDMA/2G because that network mode selection option is disabled or not available..
I am compelled to flash a new Rom..
I don't have any other options.
I own a good phone but i can't use it . Really sad about it..
for sure people here can help you more on this
http://forum.xda-developers.com/galaxy-s6-edge
I have my s6 Edge in Fully unlocked condition with Root Access also..i purchased it as unlocked from Dubai. But i cant find any Network Selection mode in my settings. Itz a ATT variant with model number 925A. The device is not taking 4G signals in india. Also there is no Network selection option in the settings to toggle between 3g & 4G..
Please help me?

[Q] Wrong radio flash

Was up to many hours and accidentally flashed tmobile marshmellow radio onto my phone. reflashed with propper radio and original firmware and know only get edge when trying to use gsm sim.. previously was getting 4glte with gsm sim. have tried dfs and enabled the lte bands and saved it but when try to add the lte config data never sticks ... help please cause edge sucks lol..
bigfdaddy2 said:
Was up to many hours and accidentally flashed tmobile marshmellow radio onto my phone. reflashed with propper radio and original firmware and know only get edge when trying to use gsm sim.. previously was getting 4glte with gsm sim. have tried dfs and enabled the lte bands and saved it but when try to add the lte config data never sticks ... help please cause edge sucks lol..
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Stock recovery factory reset tried yet?
Sent from my SM-T810 using Tapatalk
dottat said:
Stock recovery factory reset tried yet?
Sent from my SM-T810 using Tapatalk
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Click to collapse
yes i have tried that multiple times ..phone wont go into global mode stays in lte/cdma mode but have gotten lte back flashing the marshmallow firmware verizon pushed out ...so know gotta get rest back hopefully ... any help on that front be great ...
bigfdaddy2 said:
Was up to many hours and accidentally flashed tmobile marshmellow radio onto my phone. reflashed with propper radio and original firmware and know only get edge when trying to use gsm sim.. previously was getting 4glte with gsm sim. have tried dfs and enabled the lte bands and saved it but when try to add the lte config data never sticks ... help please cause edge sucks lol..
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Click to collapse
phone know gets 4g lte but is stuck in lte/cdma mode wont switch to global.....
Any help
Sent from my SM-N910V using Tapatalk

[Help] no signal/network after flashing U or T firmware

Hey guys.. I got a 930P that I recently picked up. It's unlocked andI put the newest U firmware on it from sammobile.. I put my T-mobile SIM card in there and nothing.. No signal.. Has a good IMEI, sees my-mobile number but doesn't associate with the network at all. Calling t-mobile was no help, they told me device is bad.. I also tried flashing latest 930T firmware also - same deal.. It sees T-Mobile APN settings but won't connect, period.. Anyone have suggestions before I return this device? THanks
leonzwrx said:
Hey guys.. I got a 930P that I recently picked up. It's unlocked andI put the newest U firmware on it from sammobile.. I put my T-mobile SIM card in there and nothing.. No signal.. Has a good IMEI, sees my-mobile number but doesn't associate with the network at all. Calling t-mobile was no help, they told me device is bad.. I also tried flashing latest 930T firmware also - same deal.. It sees T-Mobile APN settings but won't connect, period.. Anyone have suggestions before I return this device? THanks
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Click to collapse
Do you get WiFi at all?
i did, yeah. wound up returning the phone because whoever sold it did something fishy with it, although it didn't show up on any blacklists

SM-G920A from AT&T to to T-Mobile - 4G LTE Signal Booster

Hi,
I recently brought over my SM-G920A from ATT to T-mobile. I cannot get the ATT phone to recognize the existence of the Signal Booster--which works great on T-Moble phones--so I cannot connect to it. I have been a few rounds with others here that have walked me through the attempt to flash this phone with T-Mobile baseband load and it simply will not work. The phone is unlocked and is using the following load:
baseband G920AUCS7ERC1
BUILD NRD90M G920AUCS7ERC1
I have dev mode unlocked and have no idea what to set those settings at or what they were originally, I attempted to flash SM-GO-G920T onto it but it will not take because there is no current bootloader that can overwrite the ATT version.
So, I'm about to go back and flash the old software back on here.
But, I would really like to see if anyone has any ideas that can help me either get this phone to recognize the T-Mobile 4G-LTE signal booster or help me figure out how to get this phone to accept the SM-G920A load all together.
I would like to thank everyone in advance for your time. Please help.
Thanks and have a great day!

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