How to reset an H810 to remove personal data? - AT&T LG G4

Hey guys, I'm giving my G4 to a friend, but I'd like to do this correctly...
What is my best option to give away this phone? Right now in on 10G, rooted, and I'd like return the phone as close to stock as possible. I still have my "system.rooted.h81010g.img" on the phone but idk if I can just reflash that via the same method as used for rooting and we'd be fine (set up essentially as new and rooted) or if I'm forced to use the PR rom which I'd really rather not due to the whole green spot issue.
Being rooted is a non-issue, it's just to knock out all of my information and let him setup the phone as he'd like.
Thanks guys!

Related

identify problem?

i have a samsung captivate i897.
i bought it sim free and unlocked from the states but i'm in the UK.
i recieved it already rooted running cyanogen mod and miui and have had it for 8 months. its worked perfectly the whole time.
until the past month i'd say its been radomly forcing closs on nearly everything.
i havent installed any new software or roms or anything or even dl any new apps so i cant figure out what would be causing the problem.
i tried checking for updateds on the muiu and it runs android 2.3.7
i'm not a tech person at all so i spoke to one of the tech guys at my local phone shop and he said i should try a factory reset.
so i guess i'm asking a few questions here:
1) does anyone have any idea what might be up with my phone?
2) can someone elplain to me the easiest/safest way to fix it?
please bear it mind i am a total noob at this tech stuff. i'll try to understand and cooperate as much as i can with those so kind to help me, but i'd really appreciate if people would help/point me in the right direction instead of giving me a short blunt answer which assumes i know all this tech stuff then locking my thread.
If it's already rooted & running a custom ROM, then you probably already have a custom recovery installed (probably clockworkmod). 1st thing would be to boot into recovery & do a backup. Then, you can try flashing any ROMs you want / factory reset / whatever, and restore your backup if you don't like the results.
-- Sent from my TouchPad using Communities
how do i know if i have clockwork mod installed (i've never seen it before, but then again if its on the boot menu where i've not been before)
for booting into recovery i just long press the power button (at least it works like this on my phone) > reboot > recovery > ok
then what should happen after i press "ok" ?
also just to state (if it helps) the options i get for rebooting are: normal, hot boot, bootloader & recovery.
i dont really feel confident to be flashing roms (mainly because i dont really know how/which are stable etc) on the other hand i do need to fix it. guess i'd like to try the factory reset first though..... under the assumption its slightly easier.
i thought factory reset would restore the phone back to stock settings? but the guy in the phone shop said it wouldnt? (not sure how reliable he is ;] )
found this thread here which seems kinda similar
http://forum.xda-developers.com/showthread.php?t=1264177&page=3
have tried uninstalling some apps to see if it helps.
the thing is with the problem is seems to occur randomly. the phone will work like perfect again for a few days then boom starts forcing close yet again.
only time will tell.

[Q] Help please!

With the release of Android 4.4 coming, I'm thinking of flashing the latest Cyanogen rom. But, this is my first time owning an Android phone, or any smart phone at all. So I was wondering:
Can I upgrade my Samsung Galaxy S2 SPH-D710BST to the latest version?
If so will I have to reinstall my apps and etc.?
If I use custom firmware can I still activate and use my phone to call? (This is all assuming I still haven't gotten around to activating my phone)
If so will i have to use Boost Mobile to activate my phone? (As indicated by the model number)
Thanks in advance for any advice!
ShikiSatsu said:
With the release of Android 4.4 coming, I'm thinking of flashing the latest Cyanogen rom. But, this is my first time owning an Android phone, or any smart phone at all. So I was wondering:
Can I upgrade my Samsung Galaxy S2 SPH-D710BST to the latest version?
If so will I have to reinstall my apps and etc.?
If I use custom firmware can I still activate and use my phone to call? (This is all assuming I still haven't gotten around to activating my phone)
If so will i have to use Boost Mobile to activate my phone? (As indicated by the model number)
Thanks in advance for any advice!
Click to expand...
Click to collapse
hey there, welcome to the world of android friend! so if you were to have cm 10.2 (android 4.3) on your device and decide when a stable version of 4.4 comes out you want to flash it, you will have to reinstall all your apps, if you were to come from android 4.1 to 4.2 you wouldnt have to reinstall them. android 4.1-4.3 dont have very much changes, just a little of ui change and hardware changes to use left memory. now to see if your galaxy s2 will get 4.4? nobody will know, i dont think anybody knows if cyangenmod will make more roms, they recently annouced something that sounded like they were making their own android handset. if you use custom firmware, yes you can still use it as your phone and activate it, im sure not allot of people would flash roms to not be able to use their phones . i looked up the model number and it looks like the carrier is boost mobile. hope you figure out what you want man, please if you have any questions i would love to answer them, i love to see the notification numbers go up xD
Thanks! I already knew my phone was from Boost, I was just asking if activating it with them was a MUST. Also my phone has that manufacturer's error with the dropping cell signal repeatedly activating the menu. I tried the fix where you clear the cache partition, but that was only a temporary fix.
So, to fix the phone I have to get it repaired at a Sprint?
If so, how much?
Or, alternatively, could re-imaging the phone with a new "OS" fix it? (Only asking since the cache wipe worked for a while.)

[Q] Rooting question with not fully loaded OTA update

I own a Verizon SCH-I535 that had version 4.1.2 and after months of avoiding the Verizon update I stupidly pressed install now instead of later. I did have enough mind to take the battery out before it could reboot but my question is can I still root? And can I still use the 4.1.2 method? I don't want to install any roms just wish to uninstall any bloat apps.
I had a very similar issue some time ago. Check out my thread at http://forum.xda-developers.com/showthread.php?t=2607252
I went in a few circles, soft bricked my phone, but was able to recover. I think the important thing is to verify if your bootloader has been locked or not; boot into odin/recovery mode and checkout the messages posted in my thread. If the bootloader is not locked yet then you have options. If it is locked, you should probably just reboot the phone and let it do it's thing as the locked bootloader cannot be reverted.
Depends on how important this is to you. My wife got the 4.3 update and loves it, but she is not the type to do any customization. I now have a CM 10 d2vzw and am happy. It I were to do this again, I would probably verify you have an unlocked bootloader and re-flash the complete stock 4.1.2 image as I did. Issue is, you will probably lose a lot of data & settings, but things like pictures, etc. should sitll be there. Once the stock 4.1.2 is there you will want to root and disable updates, or else flash a new rom.
The 4.3 update (and anything after it) locks the bootloader. If that's a big deal to you, then you need to push some custom roms. If not, towelroot works on everything so far, so you'd be able to reroot (pretty hassle free) and do what you want.

[Q] Can I still get offical update and update my lg g2 if its rooted?

Hi everyone,
I am new to rooting stuff and this forum. I have a lg g2 at&t D800. I wanted to flash rom because of its dark camera issue. I rooted my phone first using ioroot based on instructions from this forum and some other source. I checked my phone I have root access now.
Then, I changed my mind. One thing it is my of control. There are too many stuff to learn. Also, the current os is not too bad.
Anyway, I did not go any further. All the software stays the same as before. I did not flash anything. I even did factory reset afterwards. The only thing changed is that I have root access now.
Can I get still official update and update my phone? Will it mass up my phone?
Thanks in advance!

Samsung SM-J37V (Help needed)

ok so here is my situation. currently im on stock latest update for this model. i am trying to find the correct stock firmware to download just incase anything goes wrong in the future. What i wanted to do was root the phone even though i wanted the current rom and everything backed up. i dont want to root or modify anything without taking a backup beforehand first. i havent rooted or done phone mods in a while and i have a contract with Verizon for this phone and dont want to brick it or atleast be able to return it to stock before my next phone upgrade incase i have to send it back. im kind of unsure where to start even though i would like to know where i can find the first stock firmware and how to flash it later just incase anything goes wrong. currently i was annoyed by the inability to change the apn settings even to disable ipv6 for the mobile data connection. im not sure it is possible if verizon has it locked and i stay away from ipv6 as much as possible because of privacy concerns so i guess if i cant disable it on the mobile network i will turn mobile data off until it is needed for something i really need while on the go.
here is what i wanted to do:
find a stock firmware file for this model just incase i have to flash to restore all default settings. it doesnt really matter if its updated i would even prefer the original or first one before all the update unless it would be recommended to download the updated one as well.
i was going to root with dr.fone until i heard about magisk because it doesnt modify system boot files or something along the lines of that. the only thing is i would like to know after i root with magisk can it be un rooted without messing up any of the stock files, or interfere with future updates if unrooted?
also i would like TWRP installed as i might want to install custom firmware if possible however if i can i would like to backup the stock recovery before i flash TWRP just incase, unless the custom recovery and everything will be restore with the stock firmware zip that can be flashed above. other than that if i can get this far and get some insight to backup and have things prepared before i dive in to modifying again in hopes i have a backup plan incase anything goes bad.
all help is appreciated and its been a while since i modifying android phones especially for this phone model i been on stock since i had it so im kind of lost in a way since i havent had recent experience for a few years in android modding and rooting in a while. hopefully i can get some feedback as im kind of lost on where to start and dont want to mess up my phone incase i need to get back to everything stock.
waiting for your replies i will get back tomorrow to see if there are any responses. i know this is going to eat up a lot of my time as well and honestly it has been stressing me out even though after i get working on it i should feel better.
Thank You!

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