[Tutorial][Rescue]Sprint HTC One users that flash GSM roms on their CDMA devices.

Did this Guide help you save your phone?

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    Votes: 53 84.1%
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    Votes: 10 15.9%

  • Total voters
    63

Sloth

Recognized Contributor / Retired Forum Moderator
Apr 23, 2012
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Xda-Dev,NV
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hadeyeencah

Member
Jun 23, 2011
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invalid sim card, no signal

Bro the RUU is the only thing that will fix you problem bro.
I bought an M7 off ebay. The seller listed it as At&T which is actually correct but I noticed my data keeps disconnecting every 5 second. I booted into bootloader only to discover that my product ID reads M7_WLS PVT. CID is 11111111. Before this, i had flashed the wrong radio and rom.
Please house, help me with link to the correct firmware to flash. i have unlocked bootloader and S-off. Phone is AT&T branded.

Thanks
 

hadeyeencah

Member
Jun 23, 2011
30
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Bro the RUU is the only thing that will fix you problem bro.
I bought an M7 off ebay. The seller listed it as At&T which is actually correct but I noticed my data keeps disconnecting every 5 second. I booted into bootloader only to discover that my product ID reads M7_WLS PVT. CID is 11111111. Before this, i had flashed the wrong radio and rom.
Please house, help me with link to the correct firmware to flash. i have unlocked bootloader and S-off. Phone is AT&T branded.

Thanks
Woow, I finally did it. Appears i have been flashing wrong Supersu
 

M. Gabe

New member
Oct 29, 2016
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Can someone help me, please I bought the phone off ebay, flashed Remix os (android 6) and my SIM is no longer detected, try first firmware and the the latest, any solution, I am quite new to this stuff so I really need help. thank you.
 

ChabsOnline

Member
Apr 6, 2014
10
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San Diego
Just wondering if there is any way to intentionally flash a gsm ROM so my m7spr can work on T-Mobile. I know the bands equipped on this device won't be able to use T-Mobile's LTE, but if I understand correctly, I can still get network connectivity. Unfortunately, it's currently the best hardware I have and I'm not looking to drop any money on a device just yet.

I have candy7 installed right now and it runs great.. Except for the lack of data access w/o WiFi. It would just be nice to be able to use it as a daily driver. ...that being said, I don't mind flashing any ROM or sw that might help in my request.

Thanks in advance for any advice you guys can provide!
 

b8engl

Senior Member
Nov 23, 2013
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duploclique.pt
Just wondering if there is any way to intentionally flash a gsm ROM so my m7spr can work on T-Mobile. I know the bands equipped on this device won't be able to use T-Mobile's LTE, but if I understand correctly, I can still get network connectivity.
Sprint: LTE 1900 Verizon version LT750, WCDMA 1900/2100, GSM 850/900/1800/1900

ATT: LTE 700/850/1700/1900, WCDMA 850/1900/2100, GSM 850/900/1800/1900

Verizon: LTE 750, WCDMA 1900/2100, CDMA 800/850/1900, GSM 850/900/1800/1900

T-Mobile: nul

I have candy7 installed right now and it runs great.. Except for the lack of data access w/o WiFi. It would just be nice to be able to use it as a daily driver. ...
So... your custom ROM "runs great" but doesn't have access to data! And you call that great?
 

ChabsOnline

Member
Apr 6, 2014
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San Diego
So... your custom ROM "runs great" but doesn't have access to data! And you call that great?
Yes... If I was still a Sprint customer, I don't think there would he an issue. Being that I'm making things more complicated, it doesn't mean the dev did a poor job. The ROM is still solid, I was just looking for some guidance from the community to see if I could get this little experiment working.

Thank you for posting the carrier bands. Theoretically, I was thinking that up-to hspa speeds would still be achievable, but wasn't sure if anyone had already tried
 

b8engl

Senior Member
Nov 23, 2013
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duploclique.pt
Yes... If I was still a Sprint customer, I don't think there would he an issue. Being that I'm making things more complicated, it doesn't mean the dev did a poor job. The ROM is still solid, I was just looking for some guidance from the community to see if I could get this little experiment working.
I see your point!

Thank you for posting the carrier bands. Theoretically, I was thinking that up-to hspa speeds would still be achievable, but wasn't sure if anyone had already tried
I have a couple of handsets, could try this... but only on Monday at work!
In the mean time, you could try to unlock the "GSM/CDMA bands" ... you need to open DIAG port first, and use: XDA guide.

Only need to use steps 15 and 16! To view if it worked, use step 11 and 12.
 
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ChabsOnline

Member
Apr 6, 2014
10
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San Diego
I have a couple of handsets, could try this... but only on Monday at work!
In the mean time, you could try to unlock the "GSM/CDMA bands" ... you need to open DIAG port first, and use: XDA guide.

Only need to use steps 15 and 16! To view if it worked, use step 11 and 12.
That would be great! I know this device is getting older, but its definitely still capable with a little TLC. I'll check tonight to see if I can access any other bands and report back
 

b8engl

Senior Member
Nov 23, 2013
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duploclique.pt
That would be great! I know this device is getting older, but its definitely still capable with a little TLC. I'll check tonight to see if I can access any other bands and report back
Great!
To open port ( DM ) dial ##3424# ( work on sprint devices )

---------- Post added at 09:50 AM ---------- Previous post was at 09:15 AM ----------

If you having problems getting ( DM ) access, try this XDA guide. See point one from OP or use old method.