How To Guide Unlock Bootloader | Install TWRP | Install LineageOS | Root/Unroot | A33

[DiegoRuiz]

Hello, i had the same issue.
As DiegoRuiz said, you should be able to poweroff the phone by holding all buttons at the same time.
Then when powered off, immediately hold the buttons to boot into downloadmode and try reflashing the os again.
The process seems somewhat broken, but as i said in the original post i managed to install lineage after all.

I will try the buttons combination a few more times to see if I get lucky then

 

[DiegoRuiz]

I will try the buttons combination a few more times to see if I get lucky then

It finally worked

 

[Privacydroid]

It finally worked

Great.

What have you done, just kept trying and it randomly worked? That's what happened to me.
Really strange, one would think there is no place for randomness when it comes to programming.

 

[DiegoRuiz]

Great.

What have you done, just kept trying and it randomly worked? That's what happened to me.
Really strange, one would think there is no place for random acts when it comes to programming.

Yeah, I just tried the combination and it randomnly worked

 

[pskevo]

Does it works on a android 13, 5.1?

 

[lunazea]

I tested on SM-A33B/DNS

It works for me, I used TWRP from the comment at the bottom and it managed to upload TWRP and the system without any problems the first time.

here is a link of what twrp I used (https://xdaforums.com/t/recovery-a33x-teamwin-recovery-project-3-for-galaxy-a33-5g-exynos.4536771/)

calling and texting work, wifi and bluetooth the same. also no problem with the rest of the features such as flashlight and adjustable brightness.

I additionally rooted the phone using magisk (https://github.com/topjohnwu/Magisk/releases)
It is also worth saying that I had to remove samsung's default partition encryption. to do this you need in TWRP:
- Go to Advanced > Terminal, type: multidisabler
- Go back to Wipe > Format Data > type yes
- Reboot to recovery.

and only then flash the rom

have fun and thanks for the rom

 

[lunazea]

I tested on SM-A33B/DNS

It works for me, I used TWRP from the comment at the bottom and it managed to upload TWRP and the system without any problems the first time.

here is a link of what twrp I used (https://xdaforums.com/t/recovery-a33x-teamwin-recovery-project-3-for-galaxy-a33-5g-exynos.4536771/)

calling and texting work, wifi and bluetooth the same. also no problem with the rest of the features such as flashlight and adjustable brightness.

I additionally rooted the phone using magisk (https://github.com/topjohnwu/Magisk/releases)
It is also worth saying that I had to remove samsung's default partition encryption. to do this you need in TWRP:
- Go to Advanced > Terminal, type: multidisabler
- Go back to Wipe > Format Data > type yes
- Reboot to recovery.

and only then flash the rom

have fun and thanks for the rom

ok and so it turns out that you can not encrypt the phone (both with root and without).

when in the settings I click "encrypt phone" nothing happens, the button is highlighted as if it was clicked but nothing happens.

 

[ezantera]

Does it works on a android 13, 5.1?

Can someone answer?

 

[Privacydroid]

Can someone answer?

Can't tell, but why not? Andy Yan's GSI's are relatively up to date running android 13.
GSI stands for Generic System Image, all versions should work on any android device.
Or you could try another system instead of lineageos, AOSP-FLOSS is also good.
AOSP meaning Android Open Source Project, FLOSS meaning Free Liberte Open Source Software.
A link to both is in the updated guide.

 

[jejexd]

Honestamente no te lo recomiendo si manejas aplicaciones de bancos, tuve muchos problemas, ni con Magisk pude lograr que dichas aplicaciones no detectaran el teléfono como rooteado y potencialmente peligroso.

Tuve que regresar a Samsung One UI.
Saludos

Es cierto, aún así prefiero mi telefono root.

 

[bedencic]

im having problems with 5G network,

and with dual sim switching on/off, doesn't work

 

[Privacydroid]

im having problems with 5G network,

and with dual sim switching on/off, doesn't work

I've noticed issues with the latest nightly lineageos builds from andy yan so i'm using lineage-20.0-20230716-UNOFFICIAL-arm64_bvN.img.xz now and haven't noticed any issue so far. Can't comment on dualsim, never tried.

Actually there is one setting that i really miss from his nightly build, and that's the PHH Treble Setting allowing you to change the refreshrate from 60 to 90 Hz which is +30 frames per second so way smoother feeling.

 

[bedencic]

does fingerprint unlock work for you ?

 

[Privacydroid]

does fingerprint unlock work for you ?

can't say, i don't biometrics for good reason.

 

[SwizZ0]

Hello my phone is stuck in a bootloop from lineage os what do i do plus when i try to turn it off it restarts automatically please help me

 

[pankaj3030V]

WARNING!
I do not take any responsibility for any damage that might happen to your device, same goes for the developers regarding unofficial twrp and lineageos releases.


View attachment 5790555


This Guide will provide instructions how to install TWRP and LineageOS, the Kernel will not be modified.

• After unboxing, complete the initial setup of the Phone
• In Phone Settings press 7 times on "Build Number" to enable Developer Options
• In Developer Options enable OEM Unlock and USB Debugging
• Power Off the Phone
• Boot the Phone in OEM Unlocking Mode, for that you must:
• Hold volume up and volume down while the Phone is powered-off
• While holding the buttons connect the Phone to the PC via USB Cable
• Keep holding the buttons untill Phone is booted to OEM Unlocking Mode
• In OEM Unlocking Mode hold volume up for few seconds - This will unlock OEM and ERASE all Data
• After Erase, Complete again the initial setup and enable Developer Options aswell as USB Debugging
• Download TWRP and either vbmeta_disabled_r.tar or vbmeta_disabled_uh.tar on the PC (Credits go to afaneh92 for vbmeta_disabled_r)
• Boot phone in OEM Unlocking Mode and press vol-up to continue to Download Mode
• On the PC download Odin and Samsung USB Driver
• Install USB Drivers and connect the Phone to PC via USB Cable, then start Odin
• In Odin klick on AP and select twrp-3.7.0_12-0-a33x.img
• In Odin klick on USERDATA and select vbmeta_disabled_r.tar or vbmeta_disabled_uh.tar
• Klick start to flash TWRP on the A33 Phone
• Download LineageOS GSI 20.0 (Android 13) on the PC (Credits go to Andy Yan)
• Extract the downloaded LineageOS GSI to get the .img
• Copy the "LineageOS_GSI.img" on any SD Card or USB Drive
• Insert SD Card to Phone or connect Phone to USB using USB Adapter
• Boot Phone in Recovery Mode (TWRP) volume up + power + use cable to connect to pc while holding buttons
• In TWRP select INSTALL then press SELECT STORAGE, select SD Card or USB
• Choose INSTALL IMAGE and flash "LineageOS_GSI.img" to System

Many thanks to V0latyle for helping me getting twrp and lineageos running on the A33

Link to slow for download rom .

 

[pankaj3030V]

Yes i did, i flashed the custom kernel and it booted correctly, it was when I installed lineageOS that I started to have this problem

Where I the custom kernel bro

 

[bafio99]

Hi everyone, I installed the ROM and the twrp, the Samsung Galaxy A33 has the biometric sensor but I can't set it on this ROM, can anyone help me? Thank you

 

[pankaj3030V]

Hi everyone, I installed the ROM and the twrp, the Samsung Galaxy A33 has the biometric sensor but I can't set it on this ROM, can anyone help me? Thank you

If I am asking you , How did you flash tell me . You have all file like custom rom and custom kernel.
If you have custom kernel. So please give me

 

[Rαdeon]

Thanks for this guide !!

Some tips that might be helpful:

-If you want to enable/disable fast (9v) charging, do it in stock rom right BEFORE wiping data and installing custom rom because you won't be able to change it afterwards (this setting is kernel level and stays the same after installing custom rom), I disabled it because the speed of 5v charging is enough for me

-Install the TrebleDroid version (td) not the Light version otherwise some features won't work, for example usb-c headphone needs a workaround (alternative audio policy) that is only available in the td version

-Doing multidisabler is necessary before flashing rom otherwise system won't boot (thanks @lunazea)

-You can also try other TrebleDroid GSIs (I haven't tried but will do in future):

Generic System Image (GSI) list

Notes about tinkering with Android Project Treble. Contribute to phhusson/treble_experimentations development by creating an account on GitHub.

github.com

-Fingerprint doesn't work obviously

-Enable "suspend execution for cached apps" in developer options for better battery

Other than that everything is great !!