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Hi guys
I known that this A5 2017 model have two types.
1) A520F - Single SIM model
2) A520F/DS - Dual SIM model
I have question of Dual SIM model and single sim model firmware compatibility.
Q#1)What if i flashed Single sim firmware (EX)AU-Vodafone, CSC:VAU) on dual sim hardware model (A520F/DS),
Is it working only Single sim mode? or it can working Dual sim mode even Single sim firmware(VAU)?
Q#2) if Q#1 is true and flashed Single sim firmware then restore to Dual sim firmware (like India, Taiwan, UAE regions firmware will support Dual SIM),
Is it restored fully dual sim mode from Single sim firmware ? I am worrying if i flashed Single sim firmware then back to Dual sim firmware, modem(Like IMEI #1, #2)/baseband information lost or not
and bootloader locked by previous(Single sim) flashed bootloader. Also it it void Knox warranty? I known that official firmware cross flash is not void know warranty, is it correct?
Thank you
Just flash with odin, know will not be triggered by flashing official firmware.
Just test it, u won't lose ur data en if anything went wrong just flash your stock firmware back.
bassbounce said:
Just flash with odin, know will not be triggered by flashing official firmware.
Just test it, u won't lose ur data en if anything went wrong just flash your stock firmware back.
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Click to collapse
Thanks for your advance.
I will try it if i buy A520F model.
BTW ,Who have gps poor reception problem using A5 2017 model??
Some of A5 2017 users(A520S,A520F) have poor gps reception problem. They says it may hardware problem and sometimes they wont get gps signal on the Google maps even outdoor location.
Pulverizer said:
Thanks for your advance.
I will try it if i buy A520F model.
BTW ,Who have gps poor reception problem using A5 2017 model??
Some of A5 2017 users(A520S,A520F) have poor gps reception problem. They says it may hardware problem and sometimes they wont get gps signal on the Google maps even outdoor location.
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GPS is really good, I have no problems with it.
No GPS issue here all works flawlessly, using A5 dual-SIM model
Sent from Public Phone
bassbounce said:
GPS is really good, I have no problems with it.
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amlbuton said:
No GPS issue here all works flawlessly
Sent from Public Phone
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Thanks for sharing exact information.
I rooted mine came with uae firmware. Installed french Firmware and everything is fine
Sent from my MI 5s using Tapatalk
rehanraza80 said:
I rooted mine came with uae firmware. Installed french Firmware and everything is fine
Sent from my MI 5s using Tapatalk
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Click to collapse
Hi, have you root Single SIM to DUAL Sim ? And you bought new holder for second SIM and everything is ok? Which FW have did you use?
Hello there,
Recently I bought a Samsung A5 2017 in Indonesia (model dual sim) and would like to know if it's possible to put a french firmware (so a firmware of SM-A520F) on SM-A520F/DS model?
Thanks for your help
Sangothen said:
Hello there,
Recently I bought a Samsung A5 2017 in Indonesia (model dual sim) and would like to know if it's possible to put a french firmware (so a firmware of SM-A520F) on SM-A520F/DS model?
Thanks for your help
Click to expand...
Click to collapse
It would be wiser to use dual sim firmware rather than single sim firmware
Sent from my SM-A520F using Tapatalk
Thanks but I don't find any dual sim firmware even on Sammobile....
Is there a risk of brick if I flash with a single sim firmware? Or maybe there's another solution?
Sangothen said:
Thanks but I don't find any dual sim firmware even on Sammobile....
Is there a risk of brick if I flash with a single sim firmware? Or maybe there's another solution?
Click to expand...
Click to collapse
I was worried too but I tried to use the normal a520f firmware and it worked fine.
BTW Some apps may not work because they will assume you are rooted eg. S HEALTH and secret mode on browser but you can actually root to get around this by editing a line in build.prop
I'm on the same boat, only with the A3: I've bought my phone as an A320F/DS (that's what the box says, and indeed it has double SIM), but when you check Settings--»About phone--»Model name, it only says A320F (without the DS). And then when you look for firmware updates in Samsung website, you only find for the A320F. Might it be that A320F/DS is only a second, alternative denomination for the A320F, being both identical? (Same would happen with the A7.)
Sangothen said:
I would like to know if it's possible to put a french firmware (so a firmware of SM-A520F) on SM-A520F/DS model?
Click to expand...
Click to collapse
It's one year since your question, but still my answer may help others:
I've flashed a SM-A320F stock firmware on my SM-A320F/DS and it works perfectly. I believe that the A series firmwares are exactly the same for single SIM and dual SIM models.
In trying to sort this out for the s7 g935f/ds, I believe I was told that indeed the F firmware is the correct firmware for both 1 and 2 sim models. There was no FDS firmware at all.
I recently obtained a Samsung S20+ SM-G9860. However, I am in the US and am intending to flash the AT&T firmware for the SM-G986U. When I try to do this, I get a secure check fail on the PIT file due to the differing model. Is there a way to circumvent this? The two models have identical hardware from what I can see.
Is it possible to do this, and what is the process for doing this if it is indeed possible?
You cannot flash a rom built for a snapdragon chipset on a phone with a exynos chipset
Be thankful there is that safety check built in. Lol
Sent from my SM-G988U1 using Tapatalk
tdevaughn said:
You cannot flash a rom built for a snapdragon chipset on a phone with a exynos chipset
Be thankful there is that safety check built in. Lol
Sent from my SM-G988U1 using Tapatalk
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Click to collapse
It's not Exynos, it's also a Snapdragon.
Oh, the Brazil variant. Still dont think it will work. They might be dual sim
Sent from my SM-G988U1 using Tapatalk
tdevaughn said:
Oh, the Brazil variant. Still dont think it will work. They might be dual sim
Sent from my SM-G988U1 using Tapatalk
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Click to collapse
It's the Hong Kong variant. It does appear to be a dual SIM, however.
YES PLEASE!! I need to change my S20+ Snapdragon SM-G986U firmware to SM-9860 too!!!
Sanctanimus said:
I recently obtained a Samsung S20+ SM-G9860. However, I am in the US and am intending to flash the AT&T firmware for the SM-G986U. When I try to do this, I get a secure check fail on the PIT file due to the differing model. Is there a way to circumvent this? The two models have identical hardware from what I can see.
Is it possible to do this, and what is the process for doing this if it is indeed possible?
Click to expand...
Click to collapse
YES PLEASE!! I need to change my S20+ Snapdragon SM-G986U firmware to Hong Kong SM-9860 firmware too! Any help please Samsung S20+ Snapdragons masters?!! :crying:
Sanctanimus said:
I recently obtained a Samsung S20+ SM-G9860. However, I am in the US and am intending to flash the AT&T firmware for the SM-G986U. When I try to do this, I get a secure check fail on the PIT file due to the differing model. Is there a way to circumvent this? The two models have identical hardware from what I can see.
Is it possible to do this, and what is the process for doing this if it is indeed possible?
Click to expand...
Click to collapse
The hardware isn't identical, SM-G986U is a Single SIM Device, your's is a Dual SIM.. TGY is the CSC in your device and even if you could flash SM-G986U Firmware the CSC would not change, it will still be TGY. If you're looking to get full AT&T call functionality on your device it's not possible as the CSC doesn't support AT&T compatibility. Firmware is CSC specific as well.
varcor said:
The hardware isn't identical, SM-G986U is a Single SIM Device, your's is a Dual SIM.. TGY is the CSC in your device and even if you could flash SM-G986U Firmware the CSC would not change, it will still be TGY. If you're looking to get full AT&T call functionality on your device it's not possible as the CSC doesn't support AT&T compatibility. Firmware is CSC specific as well.
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But mine has two IMEI numbers though 1 for physical and another for esim, HOWEVER the esim option to add another QR code for another network is not visible. Its like the device is locked for VERIZON esim use only.
Oh well, guess gotta wait for another few month for newer updates to be able to use another network esim or firmware flashing that can enable this option soon...
x88888x said:
But mine has two IMEI numbers though 1 for physical and another for esim, HOWEVER the esim option to add another QR code for another network is not visible. Its like the device is locked for VERIZON esim use only.
Oh well, guess gotta wait for another few month for newer updates to be able to use another network esim or firmware flashing that can enable this option soon...
Click to expand...
Click to collapse
If your device is the SM-G986U it's a Single SIM Device which doesn't at this point doesn't support eSim. Does the SIM Management Screen actually display the word "eSim"? Share a photo please. The device is likely still locked by Verizon. What is your motivation to change the Firmware to SM-G9860, do you live in Hong Kong?
Im sorry unfortunately I cant post links for my screenshots or upload any pictures..
If your device is the SM-G986U it's a Single SIM Device which doesn't at this point doesn't support eSim. Does the SIM Management Screen actually display the word "eSim"? Share a photo please. The device is likely still locked by Verizon. What is your motivation to change the Firmware to SM-G9860, do you live in Hong Kong?[/QUOTE]
I bought my phone online.. When I start up my phone it says Verizon, but its unlocked though because I can use any country physical simcard. Like right now im using my local simcard in Malaysia. I live in Malaysia and the reason I want to flash rom my SM-G986U device to Hong Kong firmware is so that I can use any eSim network in my country for my other network phone number.... If its a software for eSim that I can get for firmware that will be very helpful. Because the main local Malaysian samsung s20+ 5G firmware model is base on Exynos 990 which I doubt will fit for my US phone model..
I don't think you can flash SM-9860 Firmware onto your device but even if you could you still won't have eSim capability. Mix and matching firmware typically has more success on Exynos International Variants since they are Multi-CSC Enabled Devices. So if you have a British CSC (VOD) you may have success flashing German Firmware (VD2) since both CSC's are already stored in the device however even then some call features may not work. Snapdragon Devices don't have Multi-CSC's and as mentioned previously the Firmware is CSC Specific, they're made for one another. IF you had an Unlocked Bootloader, which you don't, there may be a method to modify the CSC once you root the device.. I did follow a thread a couple of years back where a gal had some success modifying her CSC on a Snapdragon Device but I believe that was a Galaxy S8. Also, I'm still curious if the word "eSim" actually appears in the SIM Management Screen on your device.
varcor said:
I don't think you can flash SM-9860 Firmware onto your device but even if you could you still won't have eSim capability. Mix and matching firmware typically has more success on Exynos International Variants since they are Multi-CSC Enabled Devices. So if you have a British CSC (VOD) you may have success flashing German Firmware (VD2) since both CSC's are already stored in the device however even then some call features may not work. Snapdragon Devices don't have Multi-CSC's and as mentioned previously the Firmware is CSC Specific, they're made for one another. IF you had an Unlocked Bootloader, which you don't, there may be a method to modify the CSC once you root the device.. I did follow a thread a couple of years back where a gal had some success modifying her CSC on a Snapdragon Device but I believe that was a Galaxy S8. Also, I'm still curious if the word "eSim" actually appears in the SIM Management Screen on your device.
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Damn.. that is some nice insights.. I read a thread somewhere too that US SM-G986U cannot and will not be able to enable its OEM or unlocked bootloader.. the eSim actually doesnt appear in the Sim Management Screen on my device. I really want to upload some links of the screenshot but for now I cant do anything as Im a new member.. I just have to wait for the network shop to open up to change my current esim card to physical simcard.. its been 2 months plus of this coronavirus lockdown and our network providers cant do much about it too..
Anyways I really appreciate the insights, like you said even if I could flash in Hong Kong SM-9860 in to my US SM-G986U, I might run into some software or calls dysfunctionalities..
Anyone got th atct update for the sm-g9880 yet? Seems the u.s has got this update before Asia?
x88888x said:
Damn.. that is some nice insights.. I read a thread somewhere too that US SM-G986U cannot and will not be able to enable its OEM or unlocked bootloader.. the eSim actually doesnt appear in the Sim Management Screen on my device. I really want to upload some links of the screenshot but for now I cant do anything as Im a new member.. I just have to wait for the network shop to open up to change my current esim card to physical simcard.. its been 2 months plus of this coronavirus lockdown and our network providers cant do much about it too..
Anyways I really appreciate the insights, like you said even if I could flash in Hong Kong SM-9860 in to my US SM-G986U, I might run into some software or calls dysfunctionalities..
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Click to collapse
u typically cannot flash hk/china firmware onto us devices bcuz those models r typically oem unlockable and they make sure ppl cant just flash the firmware to a u model and unlock tye bl.. theyre typically signed with dif keys and would most likely fail instantly to flash
elliwigy said:
u typically cannot flash hk/china firmware onto us devices bcuz those models r typically oem unlockable and they make sure ppl cant just flash the firmware to a u model and unlock tye bl.. theyre typically signed with dif keys and would most likely fail instantly to flash
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Click to collapse
Thank you I understand..:crying: now I feel like I wanna sell my Verizon unlocked phone ?
tdevaughn said:
Oh, the Brazil variant. Still dont think it will work. They might be dual sim
Sent from my SM-G988U1 using Tapatalk
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Do you think i can flash the Korean firmware on the SM G9860 BRI?
iNexusVitto said:
Do you think i can flash the Korean firmware on the SM G9860 BRI?
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Click to collapse
Not possible, the only options are flashing the SM-G9860 China or Hong Kong FW.
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.
Hi,
In order to buy an international S20 ultra 5g and use it in europe (france), I am wondering if flashing the device with a french firmaware could allow me to use it without issues, above all use samsung pay (I'm becoming blind and using card terminal in shops is sometime really tricky) ?
Look at sammobile and type in the serie number. Firmware will be there. If you're lucky your provider is there too. I don't think exynos versions of the software will work on Snapdragon. Good luck
if your chipset is qualcomm you cant use exynos firmware and otherwise