I don't know if it has been asked before but is it possible to flash H930DS firmware to simple H930 to make the dual sim option work as there is already Dual Sim option in network settings after inserting two sims in the phone.
This has worked many times in samsung phones especially in S8 series.
maniImaster said:
I don't know if it has been asked before but is it possible to flash H930DS firmware to simple H930 to make the dual sim option work as there is already Dual Sim option in network settings after inserting two sims in the phone.
This has worked many times in samsung phones especially in S8 series.
Click to expand...
Click to collapse
No.
You can flash H930DS firmware over H930 -- but your modem bands stay the same and it's still single SIM capability.
Related
So I bought V30S from B&H a few days ago. I flashed this H930-based ROM https://forum.xda-developers.com/lg-v30/development/rom-boombox-v30-t3765275 without backing up my original one (dumb, I know).
I'm on T-mobile and don't have WiFi calling and Volte settings. Am I correct in assuming that ROM is the culprit? Can somebody help me find the original Oreo ROM that the V30S would come with (don't see it on the LG website)?
Thanks for the help.
deroth said:
So I bought V30S from B&H a few days ago. I flashed this H930-based ROM https://forum.xda-developers.com/lg-v30/development/rom-boombox-v30-t3765275 without backing up my original one (dumb, I know).
I'm on T-mobile and don't have WiFi calling and Volte settings. Am I correct in assuming that ROM is the culprit? Can somebody help me find the original Oreo ROM that the V30S would come with (don't see it on the LG website)?
Thanks for the help.
Click to expand...
Click to collapse
Yes, the rom is most likely the issue. Tmobile wifi calling and volte works fine on my v30s stock unrooted rom.
As for returning to the original rom, I haven't seen any kdz for the v30s (the us998 kdz might work since the v30s is us998r, but idk).
It's possible that you'd need to have branded phone for that. I have Samsung S6 on T-Mobile PL and i've got both VoLTE and VoWIFI working.
So..there is a risk that on phone you bough from the store might not work at all. Also make sure that your sim card has activated VOLTE and WIFI Calling.
sybreeder said:
It's possible that you'd need to have branded phone for that. I have Samsung S6 on T-Mobile PL and i've got both VoLTE and VoWIFI working.
So..there is a risk that on phone you bough from the store might not work at all. Also make sure that your sim card has activated VOLTE and WIFI Calling.
Click to expand...
Click to collapse
I thought others have VoLTE and Wi-Fi calling on non-T-mobile branded bootloader unlocked and rooted V30/V30+? Maybe I'm confusing it with Sprint and Verizon.
ChazzMatt said:
I thought others have VoLTE and Wi-Fi calling on non-T-mobile branded bootloader unlocked and rooted V30/V30+? Maybe I'm confusing it with Sprint and Verizon.
Click to expand...
Click to collapse
I know the stock unlocked V30S from b&h supports tmobile wifi calling and volte, but I don't know if unlocking the bootloader and rooting it would make it not work with tmobile wifi calling and volte (I think it should still work since magisk should pass safetynet)
I have since restored to the us998 oreo stock ROM and WiFi calling along with VoLTE are back. For any US998 owners I would suggest to not flash 930h based ROMs.
I just play with my recently upgraded on EE UK contract V30 (not branded EU version), and when I perform factory reset with EE sim card I checked in hidden menu IMS settings and all values was there, so I finish other settings in hidden menu for Volte and Vowifi to get them enabled and nothing happen. I decide to reboot phone to see if that will get settings appear in menu but after reboot all configuration from IMS menu gone.
I did think about and I get my wife phone to play with (she got G6 with EE software and wifi calling works on her phone).
Basically what I found so far there is no any special apps for this, only some settings in few files need to be changed.
Files which need to be changed are : cust.prop, ims_conf.xml, mapcon_conf.xml, vo_config.xml.
I'm happy to play with this but can't do much at the moment as my phone is not rooted so I don't have permission to change these files on my phone.
Does anyone know any "root only" method for latest oreo update on V30?
I have a dual sim adapter; tested working in Pixel 2 XL. I want to try the adapter in V30 but unwilling to brick the phone.
andrewwdai said:
I have a dual sim adapter; tested working in Pixel 2 XL. I want to try the adapter in V30 but unwilling to brick the phone.
Click to expand...
Click to collapse
Yes, it will brick the phone. H930DS firmware is not compatible with any North American variants.
If you managed to not brick the phone, you would have no working radios.
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.
Can I flash a dual SIM firmware onto a single SIM phone
hello, i need help please... my samsung s8 doesnt receive updates. i have tried searching for the firmware i can use to flash it but no luck. my s8 is sm g950f and my region is nigeria. the phone has been stuck on oreo since i got it.
marv108 said:
Can I flash a dual SIM firmware onto a single SIM phone
hello, i need help please... my samsung s8 doesnt receive updates. i have tried searching for the firmware i can use to flash it but no luck. my s8 is sm g950f and my region is nigeria. the phone has been stuck on oreo since i got it.
Click to expand...
Click to collapse
Did you flash the dual sim firmware onto you single sim phone in the end? If so, what works and what doesn't work? I'm in a similar situation, but the reason why I'm asking is because I want to get VoLTE working in a specific country. The variant of the phone that is sold in that country is the FD variant whereas mine is the F variant - which was purchased in a different country.
Hello . I have a question about the Galaxy S23 ultra from 2023 all models are equipped with snapdragon 888 gen 2 before in B model Samsung use their exynos chip so what's the best deal the main difference now between U model And B , can we change our U model csc to like B to enable call recording, can we flash B model firmware on it ?
The biggest difference is that u and u1 models can never be oem unlocked because samsung completely removed that option from the software. The other models can be oem unlocked.
Without oem unlock root and BL unlock is just not possible.
As for csc changes, I've tried to change my u1 csc to a B csc and it just won't do it. As for call recording I can't get native to work on the u1 but I have the app called skvalex call recorder and it works on my S23U
spart0n said:
The biggest difference is that u and u1 models can never be oem unlocked because samsung completely removed that option from the software. The other models can be oem unlocked.
Click to expand...
Click to collapse
Your comment seems to suggest it is Samsung's choice to remove that option, while I understand it is merely a locally imposed requirement (providers? authorities?)
OnnoJ said:
Your comment seems to suggest it is Samsung's choice to remove that option, while I understand it is merely a locally imposed requirement (providers? authorities?)
Click to expand...
Click to collapse
It's not local or providers because other devices sold here can be oem unlocked same as the carriers here allow oem unlocks on devices. Just not samsung. I've been told it's Qualcomm that makes samsung do this but why would they just do it to samsung because Qualcomm supplies components for other manufacturers that sell here yet they can be oem unlocked. The way I see it, it's just a way for samsung to prevent using any other roms on their devices in the US.
My question is why we cannot flash B firmware on it and does U model also has dual sim hardware like B and E model
jahanzaiblohani said:
My question is why we cannot flash B firmware on it and does U model also has dual sim hardware like B and E model
Click to expand...
Click to collapse
No dual physical sim but there's 1 sim and esim but you can try to flash the B firmware but it gives an error. I'm willing to bet that even if you could force the flash that it wouldn't boot because samsung would probably make it a brick on purpose for anyone who tried to force it.
I had Galaxy s21 Fe snapdragon model single sim no esim and I converted it to dual sim a physical dual sim device
Both have physically different antenna/modems in them.
jahanzaiblohani said:
Hello . I have a question about the Galaxy S23 ultra from 2023 all models are equipped with snapdragon 888 gen 2 before in B model Samsung use their exynos chip so what's the best deal the main difference now between U model And B , can we change our U model csc to like B to enable call recording, can we flash B model firmware on it ?
Click to expand...
Click to collapse
S918U/U1 USA version
Single physical Sim + Esim
5G mmwave antennas
No native call recording can be enabled
Only supports USA CSC
No Unlockable bootloader thus no Root
S918 B
Global version excluding
(US ,China,Canada,tiwan ,HongKong,Korea )
Best version for users ourside US
2 Physical sims + esim
Call recording & other stuff can be enabled by CSC change
Better support for 4g&5g bands worldwide compared to ( US , China & Korea versions)
hoss_n2 said:
S918U/U1 USA version
Single physical Sim + Esim
5G mmwave antennas
No native call recording can be enabled
Only supports USA CSC
No Unlockable bootloader thus no Root
S918 B
Global version excluding
(US ,China,Canada,tiwan ,HongKong,Korea )
Best version for users ourside US
2 Physical sims + esim
Call recording & other stuff can be enabled by CSC change
Better support for 4g&5g bands worldwide compared to ( US , China & Korea versions)
Click to expand...
Click to collapse
Wow, I haven't had Samsung since S3 but was looking at the ultra; and seen unlocked on Amazon(referring to network I suppose), I'm sure thankful to see this info. I was thinking about getting the international version for T-Mobile in US? Thanks for suggesting, advice, etc.