Crossflash to SM-G770U??? - Samsung Galaxy S10 Lite Guides, News, & Discussion

Hello I ordered an S10 Lite (SM-G770F/DS), but I see the US version (SM-G770U) has more bands available for T-Mobile, 66,71
Is there anyway to crossflash the dual sim to the US model using a patched Odin? Has anyone tried?
Besides the difference in ram they should be same Snapdragon 855 chipset

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Unlock FDD LTE Band 3 (1800MHZ) on OnePlus 3 US Variant

Is there any way that I can buy the EU\Asia or Chinese variant of OnePlus 3 in US from OnePlus or flash a custom ROM or kernerl to get LTE Band 3 on the US variant?
OnePlus AMA going on over @ Reddit, there is no 32GB model coming.
https://www.reddit.com/r/Android/comments/4o308u/oneplus_ama_oneplus_3dition/
as all three models are sporting the Snapdragon 820 you will most likely find it is a ROM lock to certain bands and so flashing the EU/Asia ROM will open up Band 3, Otherwise CM13.
i am interested in finding this out also?
thank you
Snicholls said:
OnePlus AMA going on over @ Reddit, there is no 32GB model coming.
https://www.reddit.com/r/Android/comments/4o308u/oneplus_ama_oneplus_3dition/
as all three models are sporting the Snapdragon 820 you will most likely find it is a ROM lock to certain bands and so flashing the EU/Asia ROM will open up Band 3, Otherwise CM13.
Click to expand...
Click to collapse
It actually might be locked on the Modem side.
Since there were tools to unlock the Bands for OP1, there might some tools coming to do the same for OP3.
Did anybody find a modem file to flash? Or a way to do this?
Benrap said:
Did anybody find a modem file to flash? Or a way to do this?
Click to expand...
Click to collapse
why would you bump a 3 month old thread instead of the latest one with research and info about people doing it?

Root Galaxy S20 Hong Kong version

I'm thinking of getting the HK version of the S20 because it comes with an unlockable BL and also has the superior SD processor.
Will the HK variant of the S20 be rootable? Do all the LTE bands work in the US?

S20+ CSC Change

Hello Everyone,
I have the SM-G985F/DS in Canada. The current CSC is XSP/XSP,XSP/XSP.
This phone is the international variant. Can someone please guide me on how I can change the CSC? I am a total noob. I would like Samsung Pay/ VoLTE to work. Preferably Fido CSC or Unlocked Canada, some bands aren't working properly.
If this isn't possible will I get updates for my phone?
This has been a big headache.
The phone is Exynos and I'm in a Snapdragon country.
Thanks
ShawnShanked said:
Hello Everyone,
I have the SM-G985F/DS in Canada. The current CSC is XSP/XSP,XSP/XSP.
This phone is the international variant. Can someone please guide me on how I can change the CSC? I am a total noob. I would like Samsung Pay/ VoLTE to work. Preferably Fido CSC or Unlocked Canada, some bands aren't working properly.
If this isn't possible will I get updates for my phone?
This has been a big headache.
The phone is Exynos and I'm in a Snapdragon country.
Thanks
Click to expand...
Click to collapse
Since you're using an Exynos phone in a country where they officially sell the Snapdragon variant, you won't be able to flash the Canadian CSCs since they're only available for the Canadian variant.
VoLTE should work after you insert your SIM and reboot the phone, I've seen multiple reports of VoLTE no longer requiring the correct CSC to function.
Messing with band support is almost impossible on Exynos variants and I believe Samsung Pay requires the correct CSC to work so you're out of luck there.
All this aside, you will still get OTA updates based on when they're released for the XSP CSC.

Question: Convert US unlocked to EU unlocked

Hello flashers.
Question here.
I have a US unlocked version G781U1/DS. Is it possible to convert to G781B/DS? The reason for this is European B version has dual sim support, whereas apparently it is disabled on US models. Otherwise why would Samsung put DS into model name for U1 and snap in a dual sim tray?
I think both devices have same hardware specs.
Will it work?
Thanks.
No, it will not.
stefilie said:
Hello flashers.
Question here.
I have a US unlocked version G781U1/DS. Is it possible to convert to G781B/DS? The reason for this is European B version has dual sim support, whereas apparently it is disabled on US models. Otherwise why would Samsung put DS into model name for U1 and snap in a dual sim tray?
I think both devices have same hardware specs.
Will it work?
Thanks.
Click to expand...
Click to collapse
Why would you want to do this? The U1 version is a multi-CSC firmware and should work as needed in any country. I have not been able to secure a FW set for the S20 FE5G as of yet, but if it was available, it could be confirmed or denied that the specific CSC you need is contained within. Again, I'm rather curious about the issue you're facing to lead you to want to do this. Technically, you should be able to flash any Snapdragon CSC that is built for the same device. That is speculative as ive not confirmed this, but that is how it has been historically from the S8 onward
I have tried all CSC versions available in CSC menu, none of them enables dual sim. Note CSC available are most for US carriers like TMB and ATT. There is XAA (international apparently) available as well but does not enable dual sim either.

Samsung s20+ change firmware from SM G986U1 to SM G986N (korean)

I want to flash a different region firmware (in this case korean) on my device, an s20 plus unlocked (with csc xaa). The reason is that I wish to unlock 5g band n78 that the us firmware of my device does not support. I know that I cannot flash a european exynos firmware, but the korean model SM g986n has the same soc (snapdragon 865) and is single sim. In another thread (https://forum.xda-developers.com/t/flashing-from-sm-g986n-to-sm-g986u1.4072579/) the owner of a Korean s20 plus attempted to do the opposite and supposedly failed, because its korean model lacked mmwave 5g antennas that the american model supports (albeit probably calibration on the chipset is different). So thit is my question: is the reverse operation possible? Do I risk to brick the phone because of hardware limitations? Do I have to unlock the bootloader to flash the korean firmware or samsung frp tool could do the trick? I am open to suggestions here, thank you in advance.

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