Bitcoin Client Software and Version Number: bitcoin wallet on android, ver 5.31, source code
https://github.com/bitcoin-wallet/bitcoin-wallet (sorry idk if that's helpful)
Operating System: wallet is on my Samsung galaxy s7 edge
System Hardware Specs: n/a
Description of Problem: i lost my spending pin sonehow and ran btc recover for 4-7 character pins (all numerical btw) to no avail. I'm guessing my pin is 8 digits or higher (I'm betting on 8 ) and I am having no luck finding help from even the wallet recovery services people who charge 20% of your total wallet. if anyone can help me I will reimburse you, I realize this is time consuming. thank you.
You can use Btc recover to bruteforce. this is the only way. managed to recovered one with 10 digits number and one with 12 digits number. this require big computing power. sometimes, you also need luck.