guino
commented
1 year ago @sle118 usually the settings from the json file can be changed in the phone app -- if you change them there they should go down to the device. Most devices I've seen will not disable onvif on the json file when you enable it, but I have seen a few that do overwrite the setting -- I believe we 'patched' some of those to force-enable onvif (regardless of server connection). I can try to help you with patching it, if required.
If you don't want anything 'fancy' you could simply look for the references to tuya_config.json in ghidra, then find the one that 'writes' the file and just disable it (or possibly change the filename) so it writes to some other file/location (and keeps your manually edited json intact for it to read later). The way I had done in the past was looking for references to the onvif_enable setting, then overwriting the value to be always 1 -- but if you have more settings getting overwritten it may not be the worth making changes for each of them.
aside from taking the doorbell offline, is there any way to prevent ppsapp to overwrite values set in tuya_config.json by the script? Trying to enable onvif, amongst others. Changes are there in the file, but as soon as ppsapp starts, changes are overwritten.