my iphone 11 pro max wont get out of recovery mode

ive tried everything to take my iphone 11pro max out of recovery mode

ive tried

1. i paid for reiboot 32$ to get it out of recovery mode
2. ive download the firmware to update and restore but failed
3. ive put the iphone in DFU mode but no matter what i do right when the firmware is about to get installed on the fone in glitches out and get back into recovery mode