Nokia 6300 4G (TA-1286) - stock boot

[Mirko]

Hi everyone,

I'm planning to unroot my Nokia 6300 4G (TA-1286, ver. 20.00.17.01) after rooting it some time ago. However, I'm not finding anymore my original stock boot image. Recently I saw that HMD Global has published the kernel source code for this phone and so I wanted to put some effort in building a boot.img file and flashing it (even if I'm still a newbie) before asking whether anyone had a compatible stock boot image they could share. I went over the readme file attached to this conversation and I managed to compile the kernel for now. But I'm not sure about ramdisk.img, which is required for creating the final image file. How do I build it?

[Mirko]

I found a completely different solution at the end. I basically took a look at the script contained in 8k-boot-patcher and reverted each file that was affected by the script (I also overwrote adbd with a clean copy taken from a boot.img for Nokia 8110). I managed to unroot the phone completely. The only problem left is that the checksum of the unrooted boot.img I created does not match the original one, so that I can not update to the new firmware available.

Just in case, I would like to ask whether there is anyone who can share a clean dump boot.img for my phone model. If not, it's ok. At least I managed to unroot the phone even if I do not have the original boot.img file anymore.