iPhone 4s Error 29, changed battery - nothing works

So I dropped it on the floor, It worked fine until it discharged a day later, It wouldn't recharge, went into restore mode got error 29 restore loop. Tried DFU same results.

Got a new battery, nothing changed. Took it to a shop they said board is busted I should buy a new phone.

I'm posting the error log here maybe someone has an idea what's wrong.

[18:54:27.0553] entering update_gas_gauge

[18:54:27.0553] AppleImage3NORAccess::_getSuperBlock imageVersion: 3

[18:54:27.0553] AppleImage3NORAccess::_getSuperBlock imageVersion: 3

[18:54:27.0553] [nand_part_core:INF@2289] first 2 pages of boot blocks written with copies of partition table

[18:54:27.0553] [nand_part_core:INF@3169] next 98 pages of boot blocks written with LLB image of size 150080 bytes

[18:54:27.0553] [nand_part_core:INF@3172] final 156 pages of boot blocks written with random data in full page format

[18:54:27.0553] 0: RamrodErrorDomain/3ea: update_gas_gauge: gasgauge_swupdate returned -1

[18:54:27.0553] restore failed with CFError:

[18:54:27.0553] 0: AMRestoreErrorDomain/1d: failed to update device firmware

[18:54:27.0553] 1: AMRestoreErrorDomain/1d: ramrod firmware update failed

[18:54:27.0553] 2: RamrodErrorDomain/3ea: update_gas_gauge: gasgauge_swupdate returned -1

[18:54:27.0553] waiting for host to acknowledge final status received...

[18:54:27.0553] host received final status

[18:54:27.0553] attempting to dump restore log

Thank you in advance :)