iOS 26.1 cellular problem detected solved! iPhone 15 pro max
iOS 26.1 cellular problem detected solved!
do not attempt! heat plus battery can be dangerous.
this was an exploit of the bms safety protection to full power disconnect the logic board to properly power cycle the device. it can also temporally fix bad/defective capacitors as well as reset the glitching power management and integrated circuits. for me it resulted in restored phone operation bug free. but with a small risk of damage and potential fire hazard.
I have solved my unrecoverable cellular problem. I believe its caused by power management not allowing all hardware to power off. so the new software doesn't load fresh in all hardware components. full power disconnect is need to solve the problem then all other methods are unsuccessful. I was able to full power cycle my device iPhone 15 pro max by heating it 190F and cooling it in the freezer with my usb cable plugged in. when it cooled I restored it because it powered up in recovery mode and was finally successful it restoring activating and cellular network settings updating
I chose this method because its a sealed device I can't open it with out risk of needing a new display or more do to sealant.
prior to that I can't disconnect the battery do to sealed device. sealed devices are unsafe do to hiding battery swelling that is common and can burn you badly I had one of my apple devices burn me it 2011-2012 ish time frame. so I tryed this at my own risking planed on insurance replacement($199.99). ($700+ repair no thanks.) its not my fault its an update problem with pore options for recovery. battery disconnect and restore will likely fix it.
iPhone 15 Pro Max, iOS 26