Hi!
I am running a rooted stock firmware and TWRP on my S6 G920F but I am struggling with the quality of the signal (phones on the same network do have a better quality of signal even when we are in the same room and people are having difficulties to call me etc...) so I am thinking about reflashing the modem with another firmware...
Could anyone point me to a place where I could find twrp flashable modems for my s6, please?
Thanks!
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I have a G920F at the minute which suffers from poor reception. Now a new modem OF8 have been released for the G920I that improves the poor signal issue. Upon checking out the 2 phones the G920I modem has all the bands that I need even though I have a G920F. LTE 1800/2300, 3g 2100, 2g 900/1800. So Im wondering is it safe to flash the G920I modem.
Do not flash ROMs other than made specifically for your G920F.
I asked the other day about using the G920I modem on my G920F as to improve the poor reception on my phone. The next question I hope anyone can answer is would just converting the whole phone to a G920I using stock rom. The hardware in each phone is exactly the same especially the modem which is a samsung shannon. The only difference is the couple of different basebands but these are present in both varients of the modem just software locked. I cant see any reason as to why I could not do this but would like to hear if you have a take on this. Thanks. I have found threads with other people that seem to have managed it but everytime I flash the stock G920I rom it fails. Just wondering what Im missing.
Marshall1975 said:
I asked the other day about using the G920I modem on my G920F as to improve the poor reception on my phone. The next question I hope anyone can answer is would just converting the whole phone to a G920I using stock rom. The hardware in each phone is exactly the same especially the modem which is a samsung shannon. The only difference is the couple of different basebands but these are present in both varients of the modem just software locked. I cant see any reason as to why I could not do this but would like to hear if you have a take on this. Thanks. I have found threads with other people that seem to have managed it but everytime I flash the stock G920I rom it fails. Just wondering what Im missing.
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G920I Firmwares SUCKS, i am stuck in 5.1.1 and its a horrible experience, i miss 5.0.2 :crying:
Im on G920F 5.1.1 custom rom and its excellent. I need the modem from the G920i as it addressed the poor reception issue. No such modem has been released yet for the G920F hence I want to change. Once on G920I i will install a custom rom anyway so all will be good.
Marshall1975 said:
Im on G920F 5.1.1 custom rom and its excellent. I need the modem from the G920i as it addressed the poor reception issue. No such modem has been released yet for the G920F hence I want to change. Once on G920I i will install a custom rom anyway so all will be good.
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Have you tried to flash the 920I modem? I think it may be possible to do so as they have the same baseband chip.
But I am not sure whether we can get back the original modem if the flashing failed. I used to have a Nexus 4. Even when I flashed a wrong radio, I can always get back by flashing the right one. It is just a partition with constant data on the device. But I don't know whether samsung is the same.
Flashing a complete stock rom maybe impossible. I think Odin checks the model name, and prevent the flashing if they don't match (Just guess).
geanv said:
Have you tried to flash the 920I modem? I think it may be possible to do so as they have the same baseband chip.
But I am not sure whether we can get back the original modem if the flashing failed. I used to have a Nexus 4. Even when I flashed a wrong radio, I can always get back by flashing the right one. It is just a partition with constant data on the device. But I don't know whether samsung is the same.
Flashing a complete stock rom maybe impossible. I think Odin checks the model name, and prevent the flashing if they don't match (Just guess).
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Yeah I tried flashing the modem only but when odit checks the PIT it fails straight away. Did try flashing the full stock package but again no joy. Its annoying as people with G920i dont seem to be suffering the issues that the G920F has with poor cell signal. Its definately a phone issue as I am on my third one lol. Have flashed the brand new modem package that was released a couple of days ago but has mad no difference at all surprise surprise. I think your correct though as odin must check the model number before flashing. Hopefully a dev could come up with a way to bypass the check as like you say the modems and hardware are identical on both models. The only difference is a couple of basebands which from my research are only software locked anyway.
You cannot flash G920I modem to a G920F and vice-versa. They are not compatible.
Marshall1975 said:
Yeah I tried flashing the modem only but when odit checks the PIT it fails straight away. Did try flashing the full stock package but again no joy. Its annoying as people with G920i dont seem to be suffering the issues that the G920F has with poor cell signal. Its definately a phone issue as I am on my third one lol. Have flashed the brand new modem package that was released a couple of days ago but has mad no difference at all surprise surprise. I think your correct though as odin must check the model number before flashing. Hopefully a dev could come up with a way to bypass the check as like you say the modems and hardware are identical on both models. The only difference is a couple of basebands which from my research are only software locked anyway.
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So I guess g920i and f have different partitions. their partition for radio may have different sizes As I found the modem.bin of these two models are In different sizes.
Hello,
Just bought a topaz blue unlocked S6. I think it came from an Asian country. The phone arrived perfectly with plastic in box with the same IMEI as phone. However it was rooted with SU. I went into the app and clicked to remove root. It was on 5.0.2. They I tried to flash original firmware with Smart Switch with no success.
I used odin to flash stock 5.1.1 firmware from the UK. The firmware was for 920F. It went all good. I have LTE, SMS and phonecalls. However, sometimes the baseband appears as unknown, but I still can make calls and have LTE. And it still shows the same IMEI as it is on the box and it has always shown it. Is there a way to fix this? Now, I try to flash stock firmware with Smart Switch and it says it can't initialize.
I would REALLY appreciate help. I would love to be able to flash stock firmware from Smart Switch.
I'm in México with Telcel, which uses the same bands as AT&T.
P.S. I really searched and couldn't find anything on my specific situation.
That happened to me when I was still on 5.0.2 and flashed only the 5.1.1 modem. I would suggest downloading the modem.tar file and flash that. Should all be good after that.
I'm currently downloading G920FXXU1AOD4 BTU firmware to flash it with Odin. Might that help me better? My main goal is to be 100% stock without any weirdness. And having Smart Switch recognize my phone!
Well, I'm sad.
calot said:
I'm currently downloading G920FXXU1AOD4 BTU firmware to flash it with Odin. Might that help me better? My main goal is to be 100% stock without any weirdness. And having Smart Switch recognize my phone!
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You cannot downgrade to 5.0.2 from 5.1.1. Your bootloader will not support. I have the issue with 3G connection. Where to get the Modem.tar?
Hello,
I bought a galaxy s6 in Latam (g-920i) before returning to Europe (Spain). It is network unlocked, so it works perfectly. Turns out that the Latam firmwares (g920i) for marshmallow are being left behind in comparison to other regions as Europe (g920f). I have compared both phones (i/F) and they are identical, so I am feeling moved to flash a g920f firmware on my phone. When I try it, it fails. In the very beginning, I thought that it failed because the model name was wrong, so once rooted, I changed it in /system. Nothing happened, so I am assuming that the firmware fails because there is some sort of different partition set between g920i and g920f.
My question is, if I flash a g920f pit file on my s6 (originally g920i), will it firstly not brick it, and then enable me to flash a g920f firmware?
Thanks for your help.
Be good boy and never mess your device flashing stock fw with different phone version. BTW this is belong to Q&A section
Sent from my SM-G920F using Tapatalk
I know your feel
Just wait 2 week and we will get marshmallow on our 920i and don't brick you phone
Hello,
I have checked several threads and didnt find anything specific, so i am going to try and explain myself. I have a SM-G920I phone (galaxy s6), bought in America. I am living in Europe and I have unlocked the network with a code gotten from Samsung. The network and band works great and there is nothing wrong with it even tho the European g920f firmware and g920i have slightly different band/modem.
My friend has a g920f and I have checked in depth her phone and it is exactly the same as mine in everything.
So yes, I want to flash a g920f firmware on my g920i firmware. Please, don't mind why I do it, it is not relevant to my experiment.
I have flashed a modified kernel to my s6 (Droid 5.1.1) in order to root it and back my efs up. Once that is done, I know that if I brick my phone, I can bring it back as long as I have the efs. So okay, I flashed a g920f firmware (Mm) and it failed. I did some research and i guess that there is a file in the md5 which recognizes that my phone is not a g920f and rejects the updating. I have read about pit files and I have seen that all of them set different partition sizes, so I guess that may be another reason why I can't flash the 920f firmware -some file is larger than the current g920i partition-
My question is, if the g920f and g920i phone are TOTALLY equal in hardware, why does it fail? Please, don't give me a silly reason. I am expecting a technical reason.
Also, if I flash on my 920i a pit file according to the g920f firmware, will I be able to flash the F firmware later? If not, why?
Don't worry about band or modem. I will be happy if it gets flashed without any network. It is an experimental thing (i can always go back and flash a g920i firmware)
Thank you!