Hi, I'm on an S8 running ressurection remix.
I'm currently in a remote cabin and it seems that my friends and family running stock devices (not S8) get better reception than I do - we're even on the same carrier.
I'm wondering if the baseband version / modem version may have something to do with this - and if it's possible to flash the correct baseband for my region onto my current rom, and in that way restore performance?
If this is possible (and not pointless), please tell me how!
Related
Hello
Recently got a refurbished S4. Actually i can't know the exact model.
In download mode. It says it is the L720T model (sprint). But i can't instally any sprint rom.
I could install int i9505 roms (jfltexx). I tried updating lollipop modem & bootloader but i could only install Sprint modem (Updated from L720VPUGOH1 to L720VPUGOK3)
But the real problem is that I got very poor wifi signal. When near the router,it works. As soon as you walk bit away ,the signal drops significantly.
I'm still wondering wether it's a hardware or software issue. And i'm not sure about which version i got if i wanted to flash stock firmware. How can resolve this ?
Hi everyone. I'm thinking about flashing Superman ROM on my SM-G935F S7 Edge.
My stock firmware indicates that my baseband version is G935FXXU1BPHJ. The Superman ROM, on the other hand, uses G935FXXU1BPIF.
My question is the following: If I were to flash Superman on my phone, would this baseband difference affect my phone? Would radios fail to work or would I suffer from any other problems?
I'm using the phone in South America (Argentina) and the stock firmware works just fine, since this is the international variant of the phone. I am not that savvy when it comes to Android yet, since I'm pretty new to the platform.
Thanks.
Small p.s. questions: Is there anything in particular I need to disable before flashing a rom? Some security measures?
Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Used to use resurrection but now that I've moved to lineage os I can say that its better and getting improved every update it gets
Beaksterboy said:
Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Click to expand...
Click to collapse
g900f is almost identical if not the exact same as the canadian s5 g900w8.
you would need to use correct freq for your carrier, search will provide a howto. worse case scenario is to flash a canadian 6.0.1 modem from any canadian 6.0.1 stock fw
if trying to figure out connectivity, stay w/stock first as modems are from stock fw.
imo try superlite 6.0.1, it stock based and only takes a few minutes to install that way you can test out your carrier connectivity issues
https://forum.xda-developers.com/ga...-superlite-mini-mm-v1-0-361mb-g900w8-t3497158
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Beaksterboy said:
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Click to expand...
Click to collapse
ive never tried flashing a mdm from another model as ive never needed to for the s5.
ive not read enough to know if its possible or if it has any neg consequences.
easiest would be to change freq w/current mdm, search for samsung secret service codes to view and maybe change current freq
good place to start is here https://forum.xda-developers.com/showthread.php?t=2729694
I've done a lot of research on this forum. Most people say that installing G900W8 firmware on G900F isn't possible. Also it seems that it is the NVRAM which stores what bands are allowed on what model, so simply flashing a different modem won't make a difference.
Some people are saying that the hardware is different and this is what limits the bands, but I don't believe so, the radio/modem chip is the same version between models.
Trying to follow the link I posted earlier to change the NVRAM values after installing a custom ROM appears to be the only way. Some people say it works, and others say it only appears to work. The original thread was closed years ago so I guess I'll just need to try it and see.
Alternatively I could buy 2 phones, one W8 to use in Canada and a F to use in Europe, this seems silly though.
Hello everyone
I had Note 4 with Exynos chipset (N910C) with no brand (European version).
After some issues with LTE connections and SIM card recognition I have bought used N910F motherboard and installed in my device.
First boot shows that motherboard is from Italy device with Wind operator applications installed.
Next I flashed device but forgot to record IMEI, modem version and bootloader version.
I have restored device using Samsung Kies and during restore process Kies reported device as:
PDA: QG3
CSC: QG1
PHONE: QA1
After restore system setting shows:
Model: N910F
Modem: N910FXXS1DQA1
Version number: MMB29M.N910FXXU1DQG3
1) Now I have a problem: should I use TRLTE roms or TRLTEXX?
When I put "Note 4" in TWRP website search it suggest "Samsung Galaxy Note 4 Qualcomm (trlte)" - so it is TRLTE device?
On the other hand most of N910F images are tagged as TRLTEXX.
2) Can I mix TRLTE TWRP with TRLTEXX ROM image (and vice versa) or they should always match?
3) I have tested few roms and faced problems with not working camera. I know that latest official Android version for Note 4 was Android 6.1
and most roms (RR, Lineage) are based on Android 7.1 If this is the reason of problems? Because official Samsung kernel with working camera
supports Android up to version 6.1 and customs kernel used in 7.1 have some camera issues?
4) What is the relation between kernel version and Android versions? Its like Android 6.1 requires kernel 3.x.x and Android 7.1 requires for example versions never than 4.x.x etc?
I will be thankful for answers to my questions. I know that they may be naive for experienced users but I try to good understand the process,
rather than blind flash roms until device will work.
Your device is basically n910f now. You should use twrp and roms for n910f
Your camera is nonfunctional because Exynos based units use Samsung's ISOCELL modules, and Snapdragon devices use Sony's image sensors. Your network connectivity should be gone as well for that reason.
neondragon1909 said:
Your device is basically n910f now. You should use twrp and roms for n910f
Click to expand...
Click to collapse
Ok, but still, if it is TRLTE or TRLTEXX because both tags comes with N910F roms.
oddbehreif said:
Your camera is nonfunctional because Exynos based units use Samsung's ISOCELL modules, and Snapdragon devices use Sony's image sensors. Your network connectivity should be gone as well for that reason.
Click to expand...
Click to collapse
By network connectivity You mean that antena design is also different and will cause signal loss?
I forgot to mention that I have also switched front and back camera to used ones from N910F.
From original N910C only body, USB port and scrren left.
elKoniu said:
By network connectivity You mean that antena design is also different and will cause signal loss?
I forgot to mention that I have also switched front and back camera to used ones from N910F.
From original N910C only body, USB port and scrren left.
Click to expand...
Click to collapse
Precisely. If you replaced those too, you should have no issues
Questions 1 and 2: Both use Snapdragon chips. Trltexx is the unlocked international N910F, while the other one is usually sold by carriers (T-mobile, AT&T and the likes). You should be able to mix 'em with no issues.
3: To get devices working on non-OEM firmwares without direct support from official drivers, developers write bundles of code called SHIMs. The camera is one such device, and because in most cases the driver is based on the manufacturer's own proprietary code, it's usually with blood and tears that our dear devs are able to get everything working even as it is. That's why you may face almost-working equipment with AOSP ROMs. You can read more about SHIMs here.
4: "If it ain't broken, don't fix it" applies here. There's no direct correlation between Android versions and which kernel versions they use, and manufacturers are sometimes slow to move to a higher version number because of how little meaningful improvements it brings. Recently, Google has mandated that all devices shipping with a SoC manufactured in 2017 or later must come with kernel version 4.4
Hope this clears things up. Anyone is welcome to correct if anything I've said is in the slightest incorrect. :angel:
Cheers,
-odd
I have gone back to my Exynos S7 Edge from my Snap unrooted ATT Note 8 .......
I'm trying the newer Oreo ROMs but it would appear that the newly flashed later baseband modem files pretty much suck for reception on ATT. Any suggestions for the best current ATT baseband that will work with the newer ROMs like Oreo ?
Also after having been gone for almost a year from the forum any suggestions for the best ROM experience currently ??
Thanks