Modify CSC to enable LTE band 3 and 20 - Kindle Fire HDX 7" & 8.9" Q&A, Help & Troubleshoot

Issue: using 3 in the UK and they are running LTE Bands 3 and 20. I am looking at my wife's phone next to mine and she is camped on 3's Band 20. I am using an N900t and it won't allow me to enable those bands, even when forcing to either of them in the service mode. I'm running the OB6 firmware, CSC, and bootloader. The ROM is an Alliance TW 5.0 with TWRP as my recovery. I've also enabled CA as well as LTE Rev 10 to no avail.
I don't know much about how this OS works, but I am thinking that the baseband is reading the CSC and disabling the OCONUS LTE Bands, which is why they won't enable in the service mode. There is no other CSC for that firmware on sammobile, and I've read that flashing a mismatched CSC can cause incompatibility issues.
Thoughts?

I definitely posted this in the tmo note 3 form, not sure how it got here...

Related

[Q] Change HSDPA Band

Hi, I have got an Auszralian Version (Telstra) of the Galaxy Ace S5830t. This Version supports 850/2100mhz Hsdpa Bands.
However I've been wondering if it is possible to change the Bands using different Modem Firmwares to support 900mhz.
I have already tried the debugging Menu and reading through the existing Post points towards Problems when using undesignated firmwares.
I'm currently running a official android 2.3.5. My current believe points towards the Bands being hardcoded in the Modem and that I might have to buy a different phone
Any help would be awesome.

Flashing TMO firmware onto Canadian device??? can it be done and work?

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

Oreo on Three UK includes WiFi Calling and VoLTE

Title says it all really. I hadn't seen any indication that Oreo would bring any changes in the WiFi calling or VoLTE front, but the facilities that had been only available on Three branded ROMs, are available in Oreo.
Cheers for the info - on Three but using an unlocked phone so this will be useful when I've finally got the update.
xJakeyy said:
Cheers for the info - on Three but using an unlocked phone so this will be useful when I've finally got the update.
Click to expand...
Click to collapse
Same here - just flash the XEF version if you have can download it, and have access to Odin.
Great news, also on three on the unbranded note 8. I was looking for volte / wifi yesterday actually and realised I was stuck with the terrible app ! Is it available yet or are we still waiting?
davo1878 said:
Great news, also on three on the unbranded note 8. I was looking for volte / wifi yesterday actually and realised I was stuck with the terrible app ! Is it available yet or are we still waiting?
Click to expand...
Click to collapse
The release is currently only available for the XEF CSC, but as that is part of the OXM multi-CSC that covers the UK's BTU, then it's effectively identical to a UK update anyway. You can download it and flash it to your phone using Odin.
StevePritchard said:
The release is currently only available for the XEF CSC, but as that is part of the OXM multi-CSC that covers the UK's BTU, then it's effectively identical to a UK update anyway. You can download it and flash it to your phone using Odin.
Click to expand...
Click to collapse
Yeah sorry, I got to reading after I posted that and saw your post in the other thread. I'll give it a go shortly - thanks for replying mate. Much appreciated!
They’ve also updated the modem Firmware to support additional LTE bands including B32 which three are currently deploying in my area.
Occasionally callers can't hear my audio at the other end of the call whilst using WiFi calling, I'm BTU/BTU/BTU on Oreo on 3UK. Would be interesting to see if anyone else is having issues. I'll check the detailed IMS settings when I have some free time.
From the Three site:
Devices that didn't come from Three.
Right now, all 4G Super-Voice compatible*iPhones*will be 4G Super-Voice enabled once the carrier settings have been installed, even if they didn't come from Three.
4G Super-Voice doesn't work on other non-Three devices yet however, even if the manufacturer has stated that it's VoLTE compatible. We're working on this, so be sure to check back for updates.
Has anyone experienced data transmission issues on Oreo and 3 UK?
I updated to Oreo via XEF Odin flash and then Update push but was getting very intermittent and "hangy" LTE & HSDPA data transmission...
I flashed back down to 7.1.1 but if no-one else has experienced this I may try again :fingers-crossed:
S9+ (direct from Samsung) user here using my Three SIM from my old S7 Edge contract.
No WiFi calling etc, what is it that I have to do to enable it? Not flashed firmware before & I'm concerned I may void any warranty etc (on Samsung Upgrade program for the S10)
Thank you in advance for any advice.
itseggious said:
Has anyone experienced data transmission issues on Oreo and 3 UK?
I updated to Oreo via XEF Odin flash and then Update push but was getting very intermittent and "hangy" LTE & HSDPA data transmission...
I flashed back down to 7.1.1 but if no-one else has experienced this I may try again :fingers-crossed:
Click to expand...
Click to collapse
I can say that I've not noticed any data or voice issues (WiFi or otherwise) since switching to Oreo.
ToonTonic said:
S9+ (direct from Samsung) user here using my Three SIM from my old S7 Edge contract.
No WiFi calling etc, what is it that I have to do to enable it? Not flashed firmware before & I'm concerned I may void any warranty etc (on Samsung Upgrade program for the S10)
Thank you in advance for any advice.
Click to expand...
Click to collapse
This is the Note 8 Forum and we are discussing the Oreo update for that specific phone. There's no guarantee that Oreo updates for other phones will include the VoLTE or WiFi Calling settings for Three. You would be better off directing your question to the S9+ forum.
StevePritchard said:
I can say that I've not noticed any data or voice issues (WiFi or otherwise) since switching to Oreo.
This is the Note 8 Forum and we are discussing the Oreo update for that specific phone. There's no guarantee that Oreo updates for other phones will include the VoLTE or WiFi Calling settings for Three. You would be better off directing your question to the S9+ forum.
Click to expand...
Click to collapse
Have note 8 n950n. Kt branded. Korean 256 gb
Upgraded to oreo lost access to ims system switch in menu. Cant access volte or video calling menu
Its providing a key for otp. Looking for pass code
Please help. See image below
hhoffa said:
Have note 8 n950n. Kt branded. Korean 256 gb
Upgraded to oreo lost access to ims system switch in menu. Cant access volte or video calling menu
Its providing a key for otp. Looking for pass code
Please help. See image below
Click to expand...
Click to collapse
I have the 950N as well. I would suggest downloading a 950F based ROM and then flashing TEKHD's CSC detonator(its in the dev section) which is T-Mobile based. It'll give you access to VoLTE and I believe video calling as well. I am currently running WETA 6.3.3 and have flashed that CSC pack. I am able to enable both the MMTEL and RCS switch. VoLTE is working fine for me now.
Sent from my SM-N950F using Tapatalk
Three UK has just been updated for oreo on samfirmware.com downloading now.
Sent from my SM-N950F using XDA-Developers Legacy app
I am using a dual sim variant SM-N950F, both Sim cards are from 3UK so can I flash this firmware to get wificalling?
I use my SIM 1 for calls and texts and SIM2 just for data.
Just want to let you know that s7 edge btu with newest oreo update have WiFi calling enabled so no need to have 3 network firmware. Hope this helps someone.
I've just purchased a note 8 (UAE version) and using with 3uk I have Wi-Fi calling without any ROM adjustments
StevePritchard said:
The release is currently only available for the XEF CSC, but as that is part of the OXM multi-CSC that covers the UK's BTU, then it's effectively identical to a UK update anyway. You can download it and flash it to your phone using Odin.
Click to expand...
Click to collapse
Is it possible for me to flash that OXM multi-CSC on my N950F model without root? I'd like to have wifi calling and volte here in US.
I'm on the N950FXXU4CRH3 build number. (XSG)
Dchoi229 said:
Is it possible for me to flash that OXM multi-CSC on my N950F model without root? I'd like to have wifi calling and volte here in US.
I'm on the N950FXXU4CRH3 build number. (XSG)
Click to expand...
Click to collapse
You can flash on your N950F, but without knowing what CSC it currently is, the results could be a little unpredictable.
However, I can't imagine it will give you what you want in the US, as none of the native CSCs in OXM target the US carriers.
Sorry to bring back an old thread but I was wondering if you could help please? Does this mean that Oreo firmware, regardless of source will allow Three's VoLTE (4G Super Voice) to work on any Note 8, even those not supplied by Three? My phone is running 8.0.0, is unlocked, and I have just ordered a Three SIM.
TIA

Unlock all bands with S9plus?

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.
Click to expand...
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).
Click to expand...
Click to collapse
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.
Click to expand...
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).
Click to expand...
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.

Verizon 5G issues

Ok, so I have the SMG991U and almost every time it's in 5G I have no internet: it feels almost as though there is no date.
Tried poking around and I can't find anything but I'm sure I can't be alone. I think I had the issue with 12 (hard to say as I was carrying two phones at the time - one work one personal). Now that I'm down to one phone and this is my primary, it's pretty damn annoying (to say the least).
There are places where 5G is working fine, but most of the places when it's on 5G it's as though I have no coverage. When it rolls into 4G it's flying.
If I could set it to run 4G only that'd be great BUT there is no option for that. Any suggestions?
I'm running Android 13. All current updates. Baseband is G991USQU5DWa8
Try this dialer code and report results.
It lets you disable 5g bands. The app won't work probably, it was messed up before 13 came out, try it out and let us know!
How To LOCK LTE Band Without Root on SAMSUNG Device
This method is specifically for Samsung Galaxy. Because the default hiddennetwork system application is available. for devices with other brands and types, I haven't tried it. Please follow the following methods: 1. You need to install this app...
forum.xda-developers.com
" does *#2263# give you the menu to select bands for each SIM slot?
This is another way to choose LTE bands but a little annoying." .
Btw since you're on u5, you could roll back to the one from May 2021, i used the T-Mobile cvdb version. It lets me use that app to easily switch bands as a few bands are worse than dial up in my area
This is Verizon's cvdb
Download Galaxy S21 5G SM-G991U (VZW) G991USQU5CVDB in Samfw - Samsung firmware download
Galaxy S21 5G SM-G991U (VZW - United States) G991USQU5CVDB S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
*#2263# does not work. Regarding rolling back to a different version, Verizon is locked every which way there is. Otherwise I'd be running a custom ROM
r.Huzar said:
*#2263# does not work. Regarding rolling back to a different version, Verizon is locked every which way there is. Otherwise I'd be running a custom ROM
Click to expand...
Click to collapse
You can roll back... The u5 of your current version means you can roll back to that one I linked which is also u5. After doing this,
Also remember to adb disable the update app
( com.wssyncmldm )!
If it were u6, you can't go to a u5 firmware.
I forget what that's called, some kind of revision number. Older ones could be rooted and use custom roms.
How to update to the latest Software via Odin - also for flashing/unbricking any firmware
Hello everyone! I made a tutorial regarding flashing the latest updates, flashing custom ROMs or unbricking your device: Video guide: Steps: 1. Download and extract both Frija and Odin. 2. Launch Frija. 3. Check the "Auto" button. Write your...
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