If you need this tool for legitimate service work, follow this quality sourcing path:
sh /data/local/tmp/diag_enabler.sh
Some tools that modify or enhance device functionality might void warranties or operate in a legal gray area. Users should be aware of these implications. universal android diag enabler extra quality download
(Note: I did not include download links; tell me your device model if you want device-specific steps or resources.) If you need this tool for legitimate service