iPhone 7 Plus Stuck in recovery mode after drop

Hello all, I received an iPhone 7 Plus with an issue where it couldn’t restore, I fixed the issue where now it restores and after that it returns back to recovery mode, Tried replacing the NAND but have the same issue (Note: Tried same NAND and also tried a new NAND with the original data written to the new NAND) Thought it had a short on PP_CPU and PP_GPU due to beeping multimeter (i know now its a low resistance line) and I in turn I replaced the buck coils next to the CPU and now I’m clueless.

Any help would be appreciated! :D