Hi!
I've bought a Galaxy S5 (G900P) from Ebay last year, but I wasn't aware that the Sprint variant is meant for the US. (just realized that now, since I ran into problems). I've used it for almost a year now, running Android 5.1.1 with Cyanogenmod custom ROM on it - here comes the thing - as G900F. (which I just realized aswell, thinking back, and checking screenshots / Windows logs). The About Phone section, the usb drivers in Windows, several other things claimed it was G900F firmware on it - and I was able to use 3g mobile internet on it, was connected to Vodafone Hungary without problems. (turns out I can't use 4g in Europe with this variant, that's my bad). The Recovery mode (used Phil'z) and the Download mode both displayed G900P..I'm not sure what to think now.
The problems started when a few days back, Cyanogenmod announced the 13rd version, and my auto-update on CM12 took its curse, and updated it. The whole thing went smooth, phone rebooted, and instantly got hotter and hotter, draining the battery seriously fast. I've tried several apps, methods, none could help it, so I decided to just stick with Android 6.0.1 (since it came with the CM13).
Through 2 days of suffering and reading forums, pages till my eyes bled out, I managed to have a stock G900P 6.0.1. Android on my phone, it's currently charging, but here comes the fun, I'm not able to get mobile internet (3g). I could connect to Vodafone Hungary somehow, calling, and receiving calls, but there are several other things wrong with the phone like this. I've also tried to revert back to 5.1.1 (even the Stock ROM would be fine, I'd gladly skip on CM12), but Odin failed and failed each and every time.
So my question is: I know it's possible, because I DID have it, but I don't know how to anymore - G900F firmware on a G900P phone. Any help would be greatly appreciated.
(current status - Android 6.0.1 with stock G900P firmware - unrooted / I think/ ; without custom recovery, in Download mode both things say Official)
P.S.: if this subforum isn't the place for a thread like this, I'm asking a mod to please move it to a rightful section, thank you!
I've been having a horrible couple days now On Wednesday I got a new data SIM for my Axon 7 (ZTE A2017G_8346) but it had less than 8kbps speed since apparently the Axon 7 auto switches to 2G when 3G signal is low. So I found this guide online that told me
to dial *#*#4636#*#* and make some advanced selections (WCDMA only) there. In the end I managed to mistakenly change the radio band to US and now I can't use a SIM card at all. My Axon 7 is a clean non rooted phone and has Android version 6.0.1
Can anyone help me to reset the radio band to default? I read that flashing a stock ROM might fix this but I have no idea what that means. If I need to "flash a stock ROM" then can someone also please give me a link to the stock ROM? I also read that a factory reset won't help. Another solution I found on this forum here for a Moto G5 looked promising but I couldn't get through step 9 since I got an error saying the command failed.
I can't go to a service center because I bought the phone in Germany and I'm now living somewhere else. I really need some help!! Thanks in advance!
Check here this might help
https://forum.xda-developers.com/axon-7/help/how-to-reset-radio-band-axon-7-t3667423
maalu_maalu said:
I've been having a horrible couple days now On Wednesday I got a new data SIM for my Axon 7 (ZTE A2017G_8346) but it had less than 8kbps speed since apparently the Axon 7 auto switches to 2G when 3G signal is low. So I found this guide online that told me
to dial *#*#4636#*#* and make some advanced selections (WCDMA only) there. In the end I managed to mistakenly change the radio band to US and now I can't use a SIM card at all. My Axon 7 is a clean non rooted phone and has Android version 6.0.1
Can anyone help me to reset the radio band to default? I read that flashing a stock ROM might fix this but I have no idea what that means. If I need to "flash a stock ROM" then can someone also please give me a link to the stock ROM? I also read that a factory reset won't help. Another solution I found on this forum here for a Moto G5 looked promising but I couldn't get through step 9 since I got an error saying the command failed.
I can't go to a service center because I bought the phone in Germany and I'm now living somewhere else. I really need some help!! Thanks in advance!
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besides your problem with the radio, exactly why are you still in 6.0.1?? That's 2 years old
Choose an username... said:
besides your problem with the radio, exactly why are you still in 6.0.1?? That's 2 years old
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Click to collapse
I didn't really think about upgrading since I was happy with the stock version.
Okay, so I used to love rooting my phones, but I mostly dealt with flagship phones in the US which made rooting and flashing a cakewalk. I understand some of the nitty gritty, so when I got my first phone in Japan, I was super excited about rooting it. But after reading this forum for hours, I have so many questions...my phone build is A2017G JPV1.1.0B03.
I read this but this mostly focused on using an update on this phone.
https://forum.xda-developers.com/axon-7/help/a2017g-japan-to-a2017g-european-a2017g-t3608411
1. If that thread is correct, that means I technically just have the European version of the phone with Japanese modems installed. Is that correct?
2. Also, does that mean (if I were not to root the phone) I would need to install a European Axon 7 Oreo update for it to actually work on the phone? Would the US version fail?
3. I can't seem to find the modem for my phone. I can upload some screenshots later but can someone clarify if I'm right that it's a "B03" or am I looking at the wrong information?
4. There is no Oreo release for Japan, so does that mean I can't flash an Oreo ROM because there won't be any modems for this?
That's all for now, but I'm sure I have a lot of follow-up questions to your answers. Your help is greatly appreciated.
Unlock bootloader, install twrp, instal "G" model bootstack, instal any custom rom, then flash "G" modem in twrp, reboot. No matter where you device are from, the model matters. If its "G", its a european version and its only what you need to know. If you want stock oreo and didnt recieve through OTA, download the update in ZTE website for your "G" version, put it in a sdcard then reboot your phone to recovey then select "install update from sd card" option.
Basically, the model of the phone is printed on the back of it down the bottom.
A2017 is China version.
A2017U is US version.
A2017G is everything else (Global) version. It's not actually euro.
The modem software has to be for the actual model of the phone, not your location in the world.
Don't correlate software versions between Chinese, US and Global, they use different numbering systems. Only concentrate on what is for your model.
The rest of this pertains to A2017G as that is what you seem to have.
They start at B01 (usually pre-release beta) and go up from there but each new Android version eg Nougat, Oreo etc means the numbers restart from B01.
Nougat B03 has nothing to do with Oreo B03.
Look at the software version, A2017GV1.1.0 is very old, the 1.1.0 is the key to the Android version. 1.2.0 is Nougat, 1.3.0 is Oreo so you have Marshmallow at 1.1.0 and B03 release from that Android generation.
It seems confusing at first but it's actually quite simple.
RobboW said:
Basically, the model of the phone is printed on the back of it down the bottom.
A2017 is China version.
A2017U is US version.
A2017G is everything else (Global) version. It's not actually euro.
The modem software has to be for the actual model of the phone, not your location in the world.
Don't correlate software versions between Chinese, US and Global, they use different numbering systems. Only concentrate on what is for your model.
The rest of this pertains to A2017G as that is what you seem to have.
They start at B01 (usually pre-release beta) and go up from there but each new Android version eg Nougat, Oreo etc means the numbers restart from B01.
Nougat B03 has nothing to do with Oreo B03.
Look at the software version, A2017GV1.1.0 is very old, the 1.1.0 is the key to the Android version. 1.2.0 is Nougat, 1.3.0 is Oreo so you have Marshmallow at 1.1.0 and B03 release from that Android generation.
It seems confusing at first but it's actually quite simple.
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I'm so used to dealing with multiple modems for the same model of phone in the US (between the major carriers and stuff) that I was overthinking it.
Thanks a ton. That simplifies things so much...and also makes me wonder why updating never occurred for the Japanese release. It's not like there isn't language support for newer versions of Android, but maybe not for the MIUI? I need to be more careful choosing my next phone then, though probably it should be an AOSP phone like the Zenfone or Pixel.
Guess I have my work cut out for me this weekend. Time to run a giant backup and start rooting. Thanks again for all your help. I like this phone (though I often accidentally hover/touch the home button when typing, and I hope there's a sensitivity fix for that :laugh so I want it to last for a while before I get my next one.
It's still a good phone, I look at new phones and think, hmmm, nice, but what will I gain on a daily basis? Nothing more to be honest. The A7 has enough power for me still. The one thing I could really use would be a higher capacity battery. Was looking at Huawei phones but now, well.....
For updates, they had issues with OTA and reverted to only releasing for a whole ROM download for update from SD card.
I personally won't apply an OTA for mine even now at Oreo. Must be a whole ROM to flash with the updater. That's all I've done with it since purchase and it works great still. A lot of people seem to have all sorts of weird issues after applying OTA updates.
Sweet. As someone with some experience with this stuff, do you have any tips or tricks I should know moving forward? I'm going to try rooting it tonight.
-EDIT: Quick little question, my phone says the Android version is 7.1.1 but that would be Nougat, right? Or is it actually Marshmellow?
7.1.1 yeah, Nougat. That doesn't make sense from your first post.
Was it used when you got it or new? Have you checked the model from what's on the back of it, not what software says it is?
I keep mine stock, can't advise on rooting etc. I use it with personal and work SIMs and it has to pass requirements including encryption to run Microsoft InTune and our company portal and use it in work mode. Bootloader hasn't even been unlocked. The most I did was uninstall some built in user apps through ADB.
I also have a 2017G bought in Japan. I unlocked it and worked on it based on this forum, and I can say that it behaves as any other 2017G. I am not interested to use the stock ROM, but yes, I remember that it was on Nougat version when I received it.
I have the A2017 (china). As above, update your phone to the region. As a result of having a china variant, i think i miss out on band 28 and some other essential bands for reception. I get 3G/low 4G connections and a lot of bad reception areas (countryside living). Its no problem.
Currently running AEX 6.5. Search some of my recent posts for how I updated to this version.
darth_antz said:
I have the A2017 (china). As above, update your phone to the region. As a result of having a china variant, i think i miss out on band 28 and some other essential bands for reception. I get 3G/low 4G connections and a lot of bad reception areas (countryside living). Its no problem.
Currently running AEX 6.5. Search some of my recent posts for how I updated to this version.
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Appreciate it. I will try to work on it this weekend, as last weekend I just didn't have the time...
The phone was brand new when i bought it. It was on a "super sale" though, going for 12,000 yen (like 110 bucks or so). I was thinking about getting a Zenfone but if I could save the money and make it to at least Oreo I'd be happy. Been having issues with the battery whenever I use more than 2 apps at a time.
If you could link an unlocking guide and a ROM that worked well for you that would be great. I have one I plan to use but I'm always open to suggestions. After the first time, I'll feel more comfortable with it. In the worst case scenario that I brick this thing I'll just buy the Zenfone early :laugh:
The Zenphone 6 is looking a viable buy now.
My Axon 7 is still good so not really looking but I did just get a new Axon 7 Mini for use as a media player. It still has AMOLED screen, stereo speakers, headphone jack, DAC for the jack etc. No hi res bluetooth though. Cost me AU$149 new in box from retail store. Bargain! How much is a dedicated music player which is crap at movies or just cant do them?
Chucked my 128Gb SD in. Sounds good playing through the car hifi, lower 3.5 jack output matches HU aux in impedance better than Axon 7 which can overload the input at high volume. Very balanced and clean sound.
TheZen said:
Appreciate it. I will try to work on it this weekend, as last weekend I just didn't have the time...
The phone was brand new when i bought it. It was on a "super sale" though, going for 12,000 yen (like 110 bucks or so). I was thinking about getting a Zenfone but if I could save the money and make it to at least Oreo I'd be happy. Been having issues with the battery whenever I use more than 2 apps at a time.
If you could link an unlocking guide and a ROM that worked well for you that would be great. I have one I plan to use but I'm always open to suggestions. After the first time, I'll feel more comfortable with it. In the worst case scenario that I brick this thing I'll just buy the Zenfone early :laugh:
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Click to collapse
Where did you get in on a super sale? website in Japan?
Obvious unlocking guide is this one https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-custom-oreo-roms-newbies-t3786693
Give yourself 2 hours to get the job done, and there are a few guides on youtube for unlocking the bootloader and installing TWRP (if you havent already).
If you cannot root the phone by your own discovery, I dont think you'll be up for installing a custom rom. It takes a degree of risk, and research. Being successful in the attempt is worth it.
Do a backup in TWRP, or get titanium backup pro (paid) to do a backup of your essential apps and data (email, messaging, google authenticator etc). I think titanium backup is better, especially if you are going from android 7 to 8 or 9 and different twrp versions.
If your phone boots following Oki's guide (Option 1), then scroll to the last page to my post about taking it to android 9 on AEX.
As your phone is A2017G, search for the necessary files in the forum corresponding to your modem. There are plenty of links.
Good luck and let us know you are successul!
darth_antz said:
Where did you get in on a super sale? website in Japan?
Obvious unlocking guide is this one https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-custom-oreo-roms-newbies-t3786693
Give yourself 2 hours to get the job done, and there are a few guides on youtube for unlocking the bootloader and installing TWRP (if you havent already).
If you cannot root the phone by your own discovery, I dont think you'll be up for installing a custom rom. It takes a degree of risk, and research. Being successful in the attempt is worth it.
Do a backup in TWRP, or get titanium backup pro (paid) to do a backup of your essential apps and data (email, messaging, google authenticator etc). I think titanium backup is better, especially if you are going from android 7 to 8 or 9 and different twrp versions.
If your phone boots following Oki's guide (Option 1), then scroll to the last page to my post about taking it to android 9 on AEX.
As your phone is A2017G, search for the necessary files in the forum corresponding to your modem. There are plenty of links.
Good luck and let us know you are successul!
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Click to collapse
I bought it at Rakuten Mobile. There was a super sale and it was like 80% off, lol.
I tried using the guide over the last couple of days and no matter what I've done, I can't seem to get to recovery after doing the flashing (step 9). I was able to flash a stock image back on, but then when I try again it's the same results. I'm at a loss as to why but...there's another guide using the Axon7Tool.
https://forum.xda-developers.com/axon-7/how-to/guide-install-twrp-unlock-bl-flash-t3517379
The downside is that I work two jobs tomorrow so I won't have time to try this new one out but I think I downloaded everything already. This is kinda frustrating though..
-EDIT: I used the unbricking guide to EDL flash the B10 Nougat and it is a different experience than what I had before...geez, seems the Japanese version was severely neglected. If I run into problems with the other guide I feel comfortable EDL flashing Oreo. Really appreciate the support guys, let me know what you think. Before I started this, my battery was lasting barely 8 hours with only LINE and Chrome being the main background apps...
Not sure it's relevant here any more but I have a 128 Gb A2017 which I put a G build on, after being a bit miffed at some of the stuff (mostly Google based) I couldn't use on the original. I really don't know that much about what I'm doing but it all seems to work OK, though an old battery life problem has returned so I'm going to be asking elsewhere (probably) about how to replace the modem software. I also have a bit of a problem with GPS intermittently not working (going on and offline) but I suspect that's probably a hardware problem rather than the build. Mine is on
GeoffUK said:
Not sure it's relevant here any more but I have a 128 Gb A2017 which I put a G build on, after being a bit miffed at some of the stuff (mostly Google based) I couldn't use on the original. I really don't know that much about what I'm doing but it all seems to work OK, though an old battery life problem has returned so I'm going to be asking elsewhere (probably) about how to replace the modem software. I also have a bit of a problem with GPS intermittently not working (going on and offline) but I suspect that's probably a hardware problem rather than the build. Mine is on
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you can't. There are 3 modem variants by region (US, china, global) and many versions for each, but they are not interchangeable and flashing another has already wiped some IMEIs long ago (doesn't always happen though)