G935U Question - Samsung Galaxy S7 Edge Questions and Answers

So I've been tinkering around with root and wasn't happy with the battery life, but I ended up experimenting with installing the G935U firmware. Other than the AT&T features(WiFi Calling, IPMS, etc), is there any downside to having this firmware instead of G935A? I would think that the lack of AT&T bloatware would in theory do more for battery life... yes? Input?

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Edge on Verizon Firmware vs Unlocked

I have a Verizon S7 Edge and I've been wanting to mess with it for a while, I know that Rooting with the Eng Boot is a bad idea, but what about going straight unlocked. We lose the carrier bloat, but how does it affect the phone itself in terms of Battery/Overall smoothness
EchoX860 said:
I have a Verizon S7 Edge and I've been wanting to mess with it for a while, I know that Rooting with the Eng Boot is a bad idea, but what about going straight unlocked. We lose the carrier bloat, but how does it affect the phone itself in terms of Battery/Overall smoothness
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Click to collapse
It will improve greatly and you don't need the eng boot to do it. You will lose some carrier specific stuff like VVM and I believe video calling, along with the ability to use the FM tuner at this point in time.
Outbreak444 said:
It will improve greatly and you don't need the eng boot to do it. You will lose some carrier specific stuff like VVM and I believe video calling, along with the ability to use the FM tuner at this point in time.
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Click to collapse
I misspoke. I understand that I don't need engboot or Root to use the U Firmware and I can just Flash it with Odin and be good to go. The carrier stuff I'll lose isn't that important since I'm more of a texter, and the FM radio isn't a big deal either since I have my own music on my iPod, but from what you're saying it'll improve the phone, correct?
For me, coming from a Verizon firmware, I am able to use band 12 from t-mobile on my Verizon S7 Edge using unlocked firmware, so it may open up bands that were previously limited by software.

s7 choices

first android was Samsung galaxy s4 w/root. it died :crying: . want to root Samsung s7 at&t on stock rom. what is the better choice before I buy new device. 930a (American, snapdragon) or 930f (international, exidois)
If you're planning to root and install custom roms go with the 930f (international exynos). Rooting is wayyyy better not using the engineering boot and there are so many roms out there. The international is an all better phone all together with better performance and battery life. Only thing you're missing out by not buying AT&T is wifi calling and better data speeds I believe. I have the AT&T galaxy s7 and I wish I bought the international one for the rooting and roms. You can root the AT&T model, but it uses an engineering root that can make the phone slower and takes a heavy toll on battery life that is overall just crappy.

Want to move from Sprint to T-Mobile... too much info, need short answer

I'm kind of newb at this S7 stuff, I'm more of an HTC guy. Yesterday, I bought an unlocked G930P (sprint) and am not sure, but think I learned that normally, people don't change out the ROMs to use a different carrier, they simply unlock the phone and live with the old carrier's bloatware. I started reading up, and first learned that TWRP apparently isn't available on a Snapdragon processor, so the G930A, G930P, etc, aren't candidates for TWRP. At first, I was kind of dismayed. Then, I found the G930U ROM and on a whim, I tried punting the G930U ROM to the G930P. I bought the phone off craigslist, and he said he didn't know where HE got it from, but it was unlocked. Anyhow, the phone took the rom without a hitch and now it looks like a U model...
My goal: Go with T-Mobile. Use Wi-Fi calling. Eventually have Nougat. Remove bloatware, but possibly keep some nice T-Mobile add-ons, if any, because I don't have their service yet (I hated ATT's crapload of stuff). Note this isn't specifically a "TMobile" question, substitute your carrier of choice for the questions...
Get to the damned question, you say? Ok, here goes:
1. I'm not going to ask any "do these bands work" when moving from a P model to T mobile. You guys seem to fight about that stuff until you can't type any longer. I'm going to assume what whatever bands work, that's what I get. Unless I get a T-Mobile specific phone.
2. But I will ask this: do the over the air bands it uses depend on the baseband ROM that is on the device? This is something I can't figure out.
3. I heard T-Mobile uses an updated boot kernel (3.0?) and ATT & others use an older boot kernel, and that if I move to T-Mobile boot kernel, I can't go back to any of the older ones. This process I seriously don't understand. Can I run a T-Mobile OS (or any OS) while using an older boot kernel ROM? I would think NO, right?
4. I don't like all of Carrier X's bloatware. I'd rather use a stripped down, cleaner ROM. I guess there are apps for that, but is it cleaner to do it with a stripped down generic ROM that I see floating around?
6. Speaking of ROM's - I saw a lot of Xetheros or whatever ROM's floating around, but it seems like there aren't any for the snapdragon-based ones. Is this true? The posts on this site don't really talk much about the snapdragon-based phones and why there aren't any ROMs for them, and why it won't work, and what, if anything, is being done to get around this. I guess the G930U is Samsung's answer to that, and allows fooling around with roms, but will the other phones ever be actually rom-able, or should I ditch this G930P and actually buy a G930U? Now that my phone THINKS it's a G930U, did that get me around some weird barrier and NOW I can update other funky roms intended for a G930U?
I'm considering selling the G7 I just got and going from a G930F (now that I'm a bit wiser). Any common sense why not to do that? I already HAVE an ATT G7 (not the sprint one I just bought), but it has a "bad signal". It gets only about 1 bar indoors, on a good day. I took it to a repair facility and they said, "nothing wrong with the antenna, it's your mainboard, don't bother just buy a new phone". Anybody have any advice on that?
thanks
BroncoBilli said:
I'm kind of newb at this S7 stuff, I'm more of an HTC guy. Yesterday, I bought an unlocked G930P (sprint) and am not sure, but think I learned that normally, people don't change out the ROMs to use a different carrier, they simply unlock the phone and live with the old carrier's bloatware. I started reading up, and first learned that TWRP apparently isn't available on a Snapdragon processor, so the G930A, G930P, etc, aren't candidates for TWRP. At first, I was kind of dismayed. Then, I found the G930U ROM and on a whim, I tried punting the G930U ROM to the G930P. I bought the phone off craigslist, and he said he didn't know where HE got it from, but it was unlocked. Anyhow, the phone took the rom without a hitch and now it looks like a U model...
My goal: Go with T-Mobile. Use Wi-Fi calling. Eventually have Nougat. Remove bloatware, but possibly keep some nice T-Mobile add-ons, if any, because I don't have their service yet (I hated ATT's crapload of stuff). Note this isn't specifically a "TMobile" question, substitute your carrier of choice for the questions...
Get to the damned question, you say? Ok, here goes:
1. I'm not going to ask any "do these bands work" when moving from a P model to T mobile. You guys seem to fight about that stuff until you can't type any longer. I'm going to assume what whatever bands work, that's what I get. Unless I get a T-Mobile specific phone.
2. But I will ask this: do the over the air bands it uses depend on the baseband ROM that is on the device? This is something I can't figure out.
3. I heard T-Mobile uses an updated boot kernel (3.0?) and ATT & others use an older boot kernel, and that if I move to T-Mobile boot kernel, I can't go back to any of the older ones. This process I seriously don't understand. Can I run a T-Mobile OS (or any OS) while using an older boot kernel ROM? I would think NO, right?
4. I don't like all of Carrier X's bloatware. I'd rather use a stripped down, cleaner ROM. I guess there are apps for that, but is it cleaner to do it with a stripped down generic ROM that I see floating around?
6. Speaking of ROM's - I saw a lot of Xetheros or whatever ROM's floating around, but it seems like there aren't any for the snapdragon-based ones. Is this true? The posts on this site don't really talk much about the snapdragon-based phones and why there aren't any ROMs for them, and why it won't work, and what, if anything, is being done to get around this. I guess the G930U is Samsung's answer to that, and allows fooling around with roms, but will the other phones ever be actually rom-able, or should I ditch this G930P and actually buy a G930U? Now that my phone THINKS it's a G930U, did that get me around some weird barrier and NOW I can update other funky roms intended for a G930U?
I'm considering selling the G7 I just got and going from a G930F (now that I'm a bit wiser). Any common sense why not to do that? I already HAVE an ATT G7 (not the sprint one I just bought), but it has a "bad signal". It gets only about 1 bar indoors, on a good day. I took it to a repair facility and they said, "nothing wrong with the antenna, it's your mainboard, don't bother just buy a new phone". Anybody have any advice on that?
thanks
Click to expand...
Click to collapse
All U.S. models are built the exact same and will all accept each others firmware if done right , so any unlocked s7 you put the U firmware will essentially be a g930u other than the number stamped on the back , I dont believe the U firmware supports wifi calling or VOLTE , There is a t-mobile nougat firmware floating around if you want to try that , your att g7 if it has a hardware issue should be under warranty but if your using it with a different carrier I would flash the appropriate firmware to it and see if that fixes you signal issue and if not put it back to stock and call Samsung , as far as switching from the international model , Well i bought a international edge as soon as they release and it took a crap on me within 4 months and I was unable to warranty it , that was my only issue with using a international model but also i dont think you can get wifi calling on those either . hope that helps
edit* and yes the bands are dictated by the rom , U firmware opens all of them otherwise carrier roms unlock specific , and T-mobile nougat dowgrade back to MM will be dictated by the baseband , I know the Sprint nougat can be downgraded but not T-mobile for sure
goonygugle said:
All U.S. models are built the exact same and will all accept each others firmware if done right , so any unlocked s7 you put the U firmware will essentially be a g930u other than the number stamped on the back , I dont believe the U firmware supports wifi calling or VOLTE , There is a t-mobile nougat firmware floating around if you want to try that , your att g7 if it has a hardware issue should be under warranty but if your using it with a different carrier I would flash the appropriate firmware to it and see if that fixes you signal issue and if not put it back to stock and call Samsung , as far as switching from the international model , Well i bought a international edge as soon as they release and it took a crap on me within 4 months and I was unable to warranty it , that was my only issue with using a international model but also i dont think you can get wifi calling on those either . hope that helps
edit* and yes the bands are dictated by the rom , U firmware opens all of them otherwise carrier roms unlock specific , and T-mobile nougat dowgrade back to MM will be dictated by the baseband , I know the Sprint nougat can be downgraded but not T-mobile for sure
Click to expand...
Click to collapse
The U firmware does support WiFi calling and VoLTE on T-Mobile.
myphone12345 said:
The U firmware does support WiFi calling and VoLTE on T-Mobile.
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Click to collapse
I guess us AT&T users just done get them features =/ , is it enabled or do you have to do something to enable those features ?
goonygugle said:
I guess us AT&T users just done get them features =/ , is it enabled or do you have to do something to enable those features ?
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Click to collapse
I don't believe those features are supported on AT&T (probably at AT&T's own request). Perhaps that might change in the Nougat version but I wouldn't bet on it.

Need (current) help with using a refurb Verizon S7e on Cricket

I purchased a refurbished Verizon S7 Edge. Looks brand new, never used... seems flawless in every way.
Put my Cricket Sim in it and got Cricket to register the IMEI number.
Aside from the irritating message that I'm not using a Verizon Sim, and all of the unwanted Verizon bloatware... the phone will NOT stay locked on the AT&T Network... AND, it has to be Manually Connected to the AT&T Network every time, in order to get 4G LTE.
Otherwise, I only get H+ and the phone constantly wants to switch to Global Network.
So.... I started reading through an endless number of posts. I found what seemed like many good answers, but to be honest, I'm not sure if they're still relevant or if the steps, choice of software tools, etc. have changed.
More over, I am not a cell person, so this all seems like Greek to me... actually, I can recognize Greek as Greek, so this is worse than that. LOL
I'm looking for some spot-on knowledgeable person who can walk me through the steps dealing with whatever Rooting, Bootloading, Flashing, etc. are, and getting to the point that perhaps my Verizon S7e now thinks that it is either an AT&T S7e... or that it's so Universal that every band is made available on here. I'm sure there's some Firmware somewhere for that, because I swear I read about something like that on here... but can't locate that thread now.
I understand that this is a big ask... and, if there are threads with step-by-step directions for newbs & dummies, then a list of those threads, with the order in which to complete the thread-posted directions, would really make me extremely happy.
Also, I'm curious if taking this approach to this phone can improve the cell signal reception. I've noticed with my ZTE Axon 7 that ZTE updates on at least 3 occasions have very noticeably degraded the Axon 7's signal reception. I thought I was imagining it and blamed it on everything except the phone... until reading endless complaints from other owners, about the same issue, and discovering that many of those owners seem to be much more knowledgeable about cell phone hardware, software, firmware, etc., than I am.
So, I'm hoping that I can discover exactly what I need to do to make this Verizon S7e run like a Derby Champion!
I'm sure there is someone out there who has the exact same issue and quest... and if so, I'm hoping that he or she will come forward and assist, especially if they can empathize with my frustration and learning curve! LOL
Thank you, in advance, to anyone and everyone who can help me NOT BRICK my phone and turn it into a truly useful tool.
~Tex
First you need to check AT&T and the Verizon S7 and make sure the phone supports the LTE bands for AT&T. You will also need to flash the Unlocked software for the SM-G935U model. https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935U/ATT/
<<First you need to check AT&T and the Verizon S7 and make sure the phone supports the LTE bands for AT&T. You will also need to flash the Unlocked software for the SM-G935U model. >>
I'm in the same boat and appreciate your link to the SM-G935U firmware for AT&T.
I see in your link to the SM-G935U firmware that the dropdown menu includes a reference to AIO firmware. Is that Cricket firmware (the APN for Cricket includes a reference to aiowireless.net)? With a SM-G935V, can we use any of the flavors of SM-G935U firmware?
Thanks!
judicata said:
<<First you need to check AT&T and the Verizon S7 and make sure the phone supports the LTE bands for AT&T. You will also need to flash the Unlocked software for the SM-G935U model. >>
I'm in the same boat and appreciate your link to the SM-G935U firmware for AT&T.
I see in your link to the SM-G935U firmware that the dropdown menu includes a reference to AIO firmware. Is that Cricket firmware (the APN for Cricket includes a reference to aiowireless.net)? With a SM-G935V, can we use any of the flavors of SM-G935U firmware?
Thanks!
Click to expand...
Click to collapse
You should use the firmware that best supports the network you will be using. This will make life a lot easier with little to no workarounds needed to make things work.
Thanks & I'm starting to work on it now
tx_dbs_tx said:
First you need to check AT&T and the Verizon S7 and make sure the phone supports the LTE bands for AT&T. You will also need to flash the Unlocked software for the SM-G935U model. https://www.sammobile.com/firmwares/galaxy-s7-edge/SM-G935U/ATT/
Click to expand...
Click to collapse
Thanks for the information. This site can be overwhelming to a newbie... especially when I'm trying to work on my ZTE Axon 7 (already on Cricket, but bought the S7e as a replacement) and failing at that for some reason... plus get this new refurb S7e stripped of the Verizon firmware, etc.
Yes, it already has the bands, even with Verizon firmware, for the AT&T 4G LTE... but because of the Verizon software (or so I suspect) it requires me to keep manually connecting the phone to the AT&T 4G network (search, connect, etc.) whenever it drops or the phone is powered off. That's when I came back here to read and research.
Hopefully, I'll better understand all of this after I've successfully completed rooting and flashing one or both of my phones and one of them is working better for me on the Cricket network!
I'll post again if there are questions or successes... and I'm checking back on Judicata's progress as well. Similar problems might have similar solutions
~Tex
judicata said:
<<First you need to check AT&T and the Verizon S7 and make sure the phone supports the LTE bands for AT&T. You will also need to flash the Unlocked software for the SM-G935U model. >>
I'm in the same boat and appreciate your link to the SM-G935U firmware for AT&T.
I see in your link to the SM-G935U firmware that the dropdown menu includes a reference to AIO firmware. Is that Cricket firmware (the APN for Cricket includes a reference to aiowireless.net)? With a SM-G935V, can we use any of the flavors of SM-G935U firmware?
Thanks!
Click to expand...
Click to collapse
I switched back and forth a few times... it looks like it's the exact same firmware update names. All of the reading I've done on XDA Dev always seems to tell people to load ATT. I think I also saw something about being able to unlock every bandwidth in the phone... that these phones are capable of accessing all carrier bandwidths and are only limited by the software on them.
I'm also trying to work on my ZTE Axon 7... so I might be confusing those posts with the SG S7e posts. LOL
~Tex
I installed the SM-G735U software on my SM-G735V Verizon S7 Edge this afternoon. I used the AIO version figuring it was for Cricket, which is my carrier.
So far so good. The APN settings were all there and correct for Cricket. I wasn't sure whether to tick Re-Partition or not. I ticked it, and all worked out. I have not yet put the phone into Recovery Mode to wipe the cache then wipe data/factory reset. as suggested in the instructions on Sammobile to get updates OTA.
I'll post if any problems crop up.
Reflash stock bootloader after rooting. You get near stock performance.
how to root my phone
I have s7 edge verizon G935V with androd Oreo so if I install G935U firmware all verizon stuff would disapeir? could I rooted later? or how can root it?

Few questions on galaxy s7

Thinking about getting a version galaxy s7 to use on metropcs network will this work or will I have reduced internet speed or any other issues with this phone ?
Also want to do the whole root thing ,is this possible or is the boot loader unlocked?will I be limited to what ROMs I can install,like Verizon specific?
Last and probably most important how is the battery life on this phone?
Thanks in advance .
1. You can flash the phone with G930U USA unlocked firmware, and will have no issues with a GSM carrier.
2. bootloader is locked.
3. battery is still good. I get 4 hours SOT over 48 hours.
I still recommend the phone in 2018. Camera and screen are awesome. Check out google camera port.

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