I'm trying to flash a TMobile ROM on the i545 to use on TMobile. I have Insane 4.4.4 Hybrid v6 working, but the cell radio is not. I've tried flashing modules (which made the wifi work - I assume that is the module's only function). I have flashed 2 different i545 KK kernels to no effect either. I have it flashed in rom slot 1, should I be overwriting the stock rom slot? I'm running the latest NG6 (came with it updated), but can downgrade to NC5 from my understanding, if needed. I'm not sure what I'm missing to get it working, as I know others have. Thanks.
You don't need to flash a T-mobile ROM, just insert the T-mobile SIM and set the APN.
Edit: just to be clear - the i545 will work on T-mobile, but only on bands that VZ and T-mo have in common.
Flashing some other carrier's ROM won't change what frequencies are supported by the radio hardware.
k1mu said:
You don't need to flash a T-mobile ROM, just insert the T-mobile SIM and set the APN.
Edit: just to be clear - the i545 will work on T-mobile, but only on bands that VZ and T-mo have in common.
Flashing some other carrier's ROM won't change what frequencies are supported by the radio hardware.
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Click to collapse
Thanks. I know this, but I need the wifi calling feature that is only in tmobile ROMs.
Can we install network lock firmware in unlocked international version of Samsung S5?
Such as install locked Vodafone onto unlocked T-Mobile?
It depends on the hardware. You have to check if it is the EXACT same model, otherwise you can cripple, or even brick your device.
It is not uncommon to have different models on different carriers in the same country, specialized for the specific carrier's network - though this mostly applies to the US, mainly because of the CDMA vs GSM networks.
Or is it just software?
I would like to buy the Verizon variant and flash the international ROM into it so that I can get rid of version bloat ware and get faster updates.
Thanks!
Verizon is on a CDMA network where the rest of us are on GSM network. So no you can't flash am international ROM
Flashing TMO us firmware onto Canadian device? Getting ready to spend a $1000 on a Canadian deep sea blue note 8. Just wondering since it's a snap dragon if I could flash 100% stock t mobile firmware on it and have it work like an "out of the box" t mobile note 8. I'm not interested in rooting(not just yet anyways). I just wasn't sure if this would be the same process of the carrier flashing we do here in the states. Flashing the stock t mobile ap/cp/csc/bl all on the Canadian device is what I'm trying to accomplish.
I don't see why it wouldn't. The only difference between the devices is the firmware. The hardware is all the same. As a matter of fact, a method of carrier switching relies on flashing the Canadian firmware onto your device and then flashing whatever other firmware variants you want. So, with that said, flashing a TMO variant on your Canadian device shouldn't be a problem at all.
I don't think you will be able to flash the American firmware onto the Canadian Note 8 without any issues. They have different model numbers (N950U for US vs. N950W for Canada) and therefore probably also have different bootloaders. The American firmware will have to be modified for the Canadian model by replacing the bootloader, CSC, and PIT files among others. A tedious process and not always a successful one.
Perhaps you will be successful but if not you can still switch CSCs with a CSC changer zip that's floating around. I've used it to switch from the Korean CSC to the Canadian CSC because I bought a Korean model and wanted it to work properly in Canada.
Check the S8 and S8+ forums...seems they have had success in doing this
Hi All, I have unlock ATT version, then switch to T mobile service (flash T mobile firmware). Now I switch to Sprint firmware. HOwever My ATT ver didn't have the band 25 and 26. Only have band 41. Sprint needs all 3 for better connection. Is there away to unlock 25 and 26 band?
Unlock S9 plus vers and other have all bands
sweetboy02125 said:
Hi All, I have unlock ATT version, then switch to T mobile service (flash T mobile firmware). Now I switch to Sprint firmware. HOwever My ATT ver didn't have the band 25 and 26. Only have band 41. Sprint needs all 3 for better connection. Is there away to unlock 25 and 26 band?
Unlock S9 plus vers and other have all bands
Click to expand...
Click to collapse
The G965U and G965U1 are identical hardware wise and all support the same bands. What differentiates the G965U from the G965U1 is the that the G965U1 has the unlocked firmware (non carrier branded if that term makes more sense).
The only thing that differentiates one G965U from another G965U is the firmware. The firmware determines what bands are available as well as custom carrier settings/apps/configurations that is installed. For example if you properly flash the firmware for the Sprint G965U onto the AT&T G965U then it will have all the bands (and sprint customization/bloat) that the Sprint G965U version has.
To give you an example I have the sprint version, flashed it to the unlocked firmware, flashed to AT&T firmware and then finally to T-mobile. I didn't flash it in that order, that is just the different kinds of firmwares I have had on that phone.
Across the different firmware versions all necessary and needed bands were active and working just fine.
scottusa2008 said:
The G965U and G965U1 are identical hardware wise and all support the same bands. What differentiates the G965U from the G965U1 is the that the G965U1 has the unlocked firmware (non carrier branded if that term makes more sense).
The only thing that differentiates one G965U from another G965U is the firmware. The firmware determines what bands are available as well as custom carrier settings/apps/configurations that is installed. For example if you properly flash the firmware for the Sprint G965U onto the AT&T G965U then it will have all the bands (and sprint customization/bloat) that the Sprint G965U version has.
To give you an example I have the sprint version, flashed it to the unlocked firmware, flashed to AT&T firmware and then finally to T-mobile. I didn't flash it in that order, that is just the different kinds of firmwares I have had on that phone.
Across the different firmware versions all necessary and needed bands were active and working just fine.
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Click to collapse
Yes, i put in Sprint Sim on the phone then the phone auto removed the Tmobile apps and installed bunch of Sprint apps. I checked the specs for ATT ver and only see band 41 avail online. After Sprint firmware installed, I check again *#0011# and only see band 41. I was too assumed everything should be identical both S9 plus U or U1 but there must me something got block by ATT and carrier firmwares still can't unlock it.
sweetboy02125 said:
Yes, i put in Sprint Sim on the phone then the phone auto removed the Tmobile apps and installed bunch of Sprint apps. I checked the specs for ATT ver and only see band 41 avail online. After Sprint firmware installed, I check again *#0011# and only see band 41. I was too assumed everything should be identical both S9 plus U or U1 but there must me something got block by ATT and carrier firmwares still can't unlock it.
Click to expand...
Click to collapse
Did you flash the sprint firmware onto the at&t phone you have or did you just insert the sim card and let the phone apply the settings for the sim card?
If you did the latter (specifically just changing the sim card) this doesn't give you any of the carrier specific tweaks/customizations that can be found on the carrier firmware. For thse tweaks/customizations you need to flash the firmware for the carrier branded phone. So your better connection desire will most likely be a sprint firmware specific thing and not found on the at&t firmware.
Also looking up what the at&t branded phone supports and the sprint branded phone supports won't help much. It will only tell you what the two phones are configured to do for the carrier the phone is branded for. Those specs It do not tell you what the hardware can do (or that the hardware is the same whether it be the unlocked version from Samsung, the sprint branded one you buy from sprint or the at&t branded one purchased through at&t).
scottusa2008 said:
Did you flash the sprint firmware onto the at&t phone you have or did you just insert the sim card and let the phone apply the settings for the sim card?
If you did the latter (specifically just changing the sim card) this doesn't give you any of the carrier specific tweaks/customizations that can be found on the carrier firmware. For thse tweaks/customizations you need to flash the firmware for the carrier branded phone. So your better connection desire will most likely be a sprint firmware specific thing and not found on the at&t firmware.
Also looking up what the at&t branded phone supports and the sprint branded phone supports won't help much. It will only tell you what the two phones are configured to do for the carrier the phone is branded for. Those specs It do not tell you what the hardware can do (or that the hardware is the same whether it be the unlocked version from Samsung, the sprint branded one you buy from sprint or the at&t branded one purchased through at&t).
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This makes sense. I'll will try to flash Sprint firmware on top right now. The reason I said tweaks/customization applied because the whole UI "Settings" of the change completely changed from Tmobile Pie to Sprint Pie (more buttons, header rename...) so I assume tweaks/customizations already applied when Sprint Simcard did its own things
Also I thought the base S9 Pie for U ver all the same. Only when you put the Carrier simcard in then they download their all carrier settings (Not in this case?
sweetboy02125 said:
This makes sense. I'll will try to flash Sprint firmware on top right now. The reason I said tweaks/customization applied because the whole UI "Settings" of the change completely changed from Tmobile Pie to Sprint Pie (more buttons, header rename...) so I assume tweaks/customizations already applied when Sprint Simcard did its own things
Also I thought the base S9 Pie for U ver all the same. Only when you put the Carrier simcard in then they download their all carrier settings (Not in this case?
Click to expand...
Click to collapse
Carrier settings (APN, MMS/SMS settings, PRL, Roaming lists and related) are not quite the same when it comes to bands being enabled/disabled or carrier tweaks/customizations. Also I don't know if the base for the s9+ contains all the full carrier customizations/tweaks or not when it comes to android pie. If I had to guess I would say it probably comes with a somewhat generic one size fits all configuration... Perhaps along the lines of what the U1 firmware has.
Though I would presume that the base does not have all the carrier customizations/tweaks because the carriers release android pie at different times.
As an example (for illustrative purposes to explain my presumption) AT&T releases the new update before T-mobile does. T-mobile releases the update before Verizon does. Because Verizon would have been the last to release the update both AT&T and T-Mobile would not have any of the additions Verizon would have made.
When flashing the sprint firmware onto the AT&T phone you have you may need to flash the U1 firmware first, do a factory data reset and then flash the G965U firmware for sprint. Someone else might have some insight if this is still applicable for Android Pie, but when I flashed from sprint to t-mobile using the Oreo firmware that is the process I had to go through.
scottusa2008 said:
Carrier settings (APN, MMS/SMS settings, PRL, Roaming lists and related) are not quite the same when it comes to bands being enabled/disabled or carrier tweaks/customizations. Also I don't know if the base for the s9+ contains all the full carrier customizations/tweaks or not when it comes to android pie. If I had to guess I would say it probably comes with a somewhat generic one size fits all configuration... Perhaps along the lines of what the U1 firmware has.
Though I would presume that the base does not have all the carrier customizations/tweaks because the carriers release android pie at different times.
As an example (for illustrative purposes to explain my presumption) AT&T releases the new update before T-mobile does. T-mobile releases the update before Verizon does. Because Verizon would have been the last to release the update both AT&T and T-Mobile would not have any of the additions Verizon would have made.
When flashing the sprint firmware onto the AT&T phone you have you may need to flash the U1 firmware first, do a factory data reset and then flash the G965U firmware for sprint. Someone else might have some insight if this is still applicable for Android Pie, but when I flashed from sprint to t-mobile using the Oreo firmware that is the process I had to go through.
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Click to collapse
I would debate on the example (for illustrative purposes to explain my presumption) you had above, I don't think carriers are related. I would think Google/Samsung (Google may give the base to Samsung first then Samsung distribute to each carrier) give each carrier the base then each carrier goes customize their own settings with their own times to release to us.
Yes the correct way to flash to U1 then flash back to be clean (I guess And I did that when switch from ATT to Tmobile) But i have to much to setup again, so may just dirty flash Sprint now
PS: Still can't find the Sprint Pie in Sammobile website. Only Verizon and Tmobile and Generic ver
scottusa2008 said:
Did you flash the sprint firmware onto the at&t phone you have or did you just insert the sim card and let the phone apply the settings for the sim card?
If you did the latter (specifically just changing the sim card) this doesn't give you any of the carrier specific tweaks/customizations that can be found on the carrier firmware. For thse tweaks/customizations you need to flash the firmware for the carrier branded phone. So your better connection desire will most likely be a sprint firmware specific thing and not found on the at&t firmware.
Also looking up what the at&t branded phone supports and the sprint branded phone supports won't help much. It will only tell you what the two phones are configured to do for the carrier the phone is branded for. Those specs It do not tell you what the hardware can do (or that the hardware is the same whether it be the unlocked version from Samsung, the sprint branded one you buy from sprint or the at&t branded one purchased through at&t).
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Click to collapse
Shouldn't have to flash the phone should install the firmware as soon as you install the Sim card
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 02:25 PM ---------- Previous post was at 02:24 PM ----------
sweetboy02125 said:
Hi All, I have unlock ATT version, then switch to T mobile service (flash T mobile firmware). Now I switch to Sprint firmware. HOwever My ATT ver didn't have the band 25 and 26. Only have band 41. Sprint needs all 3 for better connection. Is there away to unlock 25 and 26 band?
Unlock S9 plus vers and other have all bands
Click to expand...
Click to collapse
All models are the same. Their just blocked in att firmware same goes for vzws B13. Your phone will install the firmware when you put in the sim card
Sent from my SM-G965U1 using Tapatalk
tengen31 said:
Shouldn't have to flash the phone should install the firmware as soon as you install the Sim card
Sent from my SM-G965U1 using Tapatalk
---------- Post added at 02:25 PM ---------- Previous post was at 02:24 PM ----------
All models are the same. Their just blocked in att firmware same goes for vzws B13. Your phone will install the firmware when you put in the sim card
Sent from my SM-G965U1 using Tapatalk
Click to expand...
Click to collapse
You are right, I saw 25 and 26 now. Sim card will download and unlock the band needed
sweetboy02125 said:
You are right, I saw 25 and 26 now. Sim card will download and unlock the band needed
Click to expand...
Click to collapse
Yep. My S8 did it,so does my S9+
Sent from my SM-G965U1 using Tapatalk
I am not sure if this would work or not and I haven't done this for a while. I might have the wrong service code or the menu option may have changed with android pie. So if I do someone feel free to correct it.
Note - if you see a message like RAT access/menu isnt allowed (or something like this) power off the phone, take the sim card out and power the phone on without the sim card in it. The process should work then.
*Open the phone app and enter ##DATA# (##3282#)
*Choose edit and if prompted enter a total of siix zeros as the MSL
*Select LTE to edit the active bands
From there you can enable or disable bands. If the band isn't listed you simply cant just add it. I would suggest flashing the carrier firmware as this would have it enabled.
Also I do believe that there are carrier customization/tweaks that may only be on the firmware from the carrier. Swapping the sim may change a few apps, change a few menu items and apply settings from the sim card onto the phone. It also may apply some (or perhaps most) carrier settings. I have not seen anything that gives me cause to believe that it applies all the carrier customization/tweaks.
If that were the case why did my g96u1 (or sprint g965u) firmware not show video calling or get provisioned for it, but flashing the tmobile firmware allowed for the feature to be enabled and provisioned. Also on the tmobile firmware I have had better signal retention and strength (not the signal bars, actual signal strength measurements on the phone) then with the unlocked firmware (or the original firmware that was on the phone with the tmobile sim).
If swapping the sim installs the tmobile firmware then that should have been all it took and I could continue to use the unlocked firmware, but this was not the case. The only features that were enabled were (outside of menu changes and app additions) VoLTE and WiFi calling. Now if this alone indicates carrier firmware specific features/tweaks/customizations can only reside on carrier firmware, then how could one declare it wouldn't also effect what bands are enabled/disabled. Like I said I haven't seen anything that says otherwise, but from what I have seen first hand there are somethings that are apparently only on the carrier's firmware that is not available on the others.