FP4 - Advice about bootloader and root please - Fairphone

Hi everyone,
I got a FP4
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Before I start using it I’d like to be able to make it so I can back it up with Titanium or Helium backup, which need root, and TWRP for full partitions, which needs a bootloader unlock. However, I don’t want to leave it rooted or leave the bootloader unlocked. What’s the best way to go about setting up the phone to do this?
If I relock the bootloader, does this delete all user data?
Is it okay to relock the bootloader with TWRP installed or will it bootloop?
Even if this is okay, when I unlock the bootloader again then it will delete all user data won’t it?
And for rooting, I can follow the steps for using Magisk, but is it possible to leave it disabled most of the time (i.e. to allow banking and other similar apps to work)?
Magisk also means OS updates need to be done manually doesn’t it? So would I need to leave the bootloader unlocked?
Basically, I don’t want to start using my phone immediately without doing what I can to set up these things so I can use them in future, because I know that to set it all up in future will require a factory reset for which I’d actually want to have Titanium/Helium backup in the first place!
Thanks for your patience with my probably dumb questions!
Cheers

I didn't unlock/root mine : no time anymore to fix things I break xD
But all I can tell you is unlocking (and probabely relocking) does wipe everything on the device, so unlocking to then relock seems pointless.
On the other hand, I don't think it is that of a security issue to have an unlocked bootloader, as long as you keep your hands on the device... (root is another story I think)

Thanks @matmutant thank you that's helpful confirmation.

Related

[Q] unlocked One X unable recieve official software update

Dear XDA members,
I recently bought a HTC One X from Expansys Japan which say on the website that the phone is 'sim-free' i.e. factory unlocked. When I received the phone, the seal was broken and on the first startup the phone didn't ask for initial setup. The language was Chinese which I changed to English, then I tried to update the software which got downloaded (on Wi-Fi) but the software couldn't be installed and gave an error that the phone as running a modified software and I need to return to original (snapshot below).
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I then found that the phone has been rooted and the software version and the ROM is something with "OneX.G2 by Cason" written at the end. It seems that they unlocked the One X and send it to me. Now that I haven't yet got any reply from them regarding this fraud, is there any way I can get the software update for this phone?
Can I return the phone to factory setting without loosing the unlock and can use on my carrier after the software update? Or if I reset the phone then it will get locked to its previous carrier and I might not be able to use it without unlocking again??
Thank you in advance.
You were sold used goods as new. The warranty is void. Not much else to be said.
Look in the development section, there are guides you could follow to relock the bootloader and install stock recovery, which will allow you to receive HTC's OTA updates. You can always re-unlock the bootloader using HTCDev.com.
That being said, since your warranty is already void because the bootloader has been unlocked, you should consider finding a custom ROM and kernel that suits your needs, since they'll usually be (much) faster and power-efficient than the stock ROM.

[Q] Wrong Rom CSC?

Hello everyone
i recently decided to root my Note2 ,
but then i couldnt reach OTA updates so i had to flash to stock
i flashed to stock (but i think i flashed the wrong rom)
then the phone was struggling to open pictures apps and generally work properly
so i decided to flash it again (i think again i flashed with wrong rom)
can someone help me and tell me which rom to install there is a screenshot from checkfus
also i would like to wipe everything from inside the phone.
thank you in advance.
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To recover OTA updates you need to reset your binary counter. (you need root access)
So you should root your device again then reset your counter and finally flash a stock firmware.
More details HERE
Primokorn said:
To recover OTA updates you need to reset your binary counter. (you need root access)
So you should root your device again then reset your counter and finally flash a stock firmware.
More details HERE
Click to expand...
Click to collapse
i have read this thread but i am kinda lost when it comes to choose rom from sammobile
which one is the right one for my device?
On Sammobile website you can sort by country. Choose the latest one for your country.
thank you
i flashed it
i erased all data
and seems to run smoothly
thank you very much for your help

Epdg test app

I found this while playing around with different hidden things on my note 4 and was wondering if anyone could tell me what it is and if anyone knows if it's ok to change any of the settings in this menu.
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Sent from my SM-N910V using XDA Free mobile app
I can't see a photo if you appended one.
After looking into this after debloating and now that I have an unlocked bootloader (so happy now), it seems to be a test to enable WiFi calling with verizon and/or samsung. It should be harmless. I froze it in Titanium Backup since they have announced WiFi calling coming to verizon.....soon.
Sent from my SM-N910V (jfltevzw now trltevzw Stock 5.1.1 Xposed using XDA-Developers mobile app)
Verizon: turbodrainer
Hi.
I accidently bought a s7 edge verizon and now I can't work anymore. Its draining my battery so fast that it get to hot to finish. I have tried to unlock the bootloader so I can root it, (both with wondershare dr. Fone and with odin) but it seems impossible.
How can I make my phone my own phone?
Toastmaster83 said:
Hi.
I accidently bought a s7 edge verizon and now I can't work anymore. Its draining my battery so fast that it get to hot to finish. I have tried to unlock the bootloader so I can root it, (both with wondershare dr. Fone and with odin) but it seems impossible.
How can I make my phone my own phone?
Click to expand...
Click to collapse
Follow this post carefully step by step, do not skip anything and you should have a fully rooted S7edge.
Keep in mind that there's no bootloader unlock available for US Samsungs, therefore no TWRP custom recovery, otherwise it works just fine.
https://forum.xda-developers.com/showpost.php?p=81045085&postcount=1826
Thx
Thanx. I will get back when I'm finished

Firmware Download Mode (not bootloader )

Has anyone seen this on the Pixel?
I get this, when I turn off the phone and press volume up (only) then plug in the cable and get to this Download Mode that I has never seen on a Pixel. I always use bootloader to flash.
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What is it for?
What firmware use ?
Is this new? ( I've seen this on a LG phone before )
P.S. I'm on Android Q beta Qpp2 (not rooted)
valderdark said:
Has anyone seen this on the Pixel?
I get this, when I turn off the phone and press volume up (only) then plug in the cable and get to this Download Mode that I has never seen on a Pixel. I always use bootloader to flash.
What is it for?
What firmware use ?
Is this new? ( I've seen this on a LG phone before )
P.S. I'm on Android Q beta Qpp2 (not rooted)
Click to expand...
Click to collapse
Yeah, it's been noted a while back. Unfortunately it is of no use to us unless you could get factory signed firmware from google, and then have the proper interface with which to install it. Some folks were messing with it in late 2017 to see if a root exploit could be found for the Verizon variant by installing it, however, it never came to fruition.
Badger50 said:
Yeah, it's been noted a while back. Unfortunately it is of no use to us unless you could get factory signed firmware from google, and then have the proper interface with which to install it. Some folks were messing with it in late 2017 to see if a root exploit could be found for the Verizon variant by installing it, however, it never came to fruition.
Click to expand...
Click to collapse
Thought that I would mess around with it.
It would be nice to have a different way to flash a firmware just in case the other method doesn't work.
Thanks

Re-locking the Bootloader ?

I've been successfully running LineageOS 18.1 on my (Magisk-rooted) Pixel 3. The unlocked bootloader screen at bootup became annoying and so I decided to relock the phone. Without reading all of my HowTo notes (because I thought I remembered).
I sent "adb reboot bootloader" and then "fastboot flashing lock" and got the notice on the phone to press POWER if I wanted to re-lock and so I did. But the next screen said it couldn't find an operating system !!
I turned the phone off and then manually booted into Fastboot where I was able to unlock the phone again at which point it remembered where the operating system was and I was able to boot back into it. (And since I had forgotten that locking OR unlocking does a hard reset - for which I hadn't prepared for AT ALL - I spent the next 2 day rebuilding my phone from scratch. Yes, it serves me right.)
So what did I do wrong? how can I re-lock the bootloader without losing LineageOS?
laffin_boy said:
how can I re-lock the bootloader without losing LineageOS
Click to expand...
Click to collapse
You mean this?
Code:
g.co/ABH
Dunno, I am afraid you can't... but I vaguely remember that this message annoyed me as well and there are ways to turn it off.
In the end, I decided this annoying message is not worth my time and nowadays I think of it more like this:
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Yes, you! And me! Both of us! That's who! The other 99.9% are idiots and wouldn't even know how to begin to unlock a phone

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