Ok, so it's a hardware problem that demands a hardware solution.
If I were to e.g. remove the battery from the keyboard, or desolder the charging chip, or otherwise modify the hardware, is there some way I could continue to use the keyboard while circumventing this power issue? I would rather be able to use USB peripherals with the phone than have a backup battery in the keyboard, if it is possible to make that choice. My aim in this scenario would be to guarantee that the phone could not be damaged by the keyboard while a USB peripheral is connected to the phone.
Might it be possible to install a hardware switch somewhere inside the charger so that I could maintain both functions? E.g., naïvely considering the schematic, could I cut the trace from pins 16 and 17 of the IP5209 power management SOC to jumper 2, or intercept the trace from jumper 2 to wherever it's going, and splice in a physical switch?
Also, my sincere thanks to all who have responded. Your input is very much appreciated.
I see here for instance that it has been suggested by reddit user u/Odd-Version9895 that it should be safe to use the phone's usb port if the battery is disconnected, but I don't know on what authority that person is able to make that claim. It makes sense to me intuitively, but what do I know...
If I were to e.g. remove the battery from the keyboard, or desolder the charging chip, or otherwise modify the hardware, is there some way I could continue to use the keyboard while circumventing this power issue? I would rather be able to use USB peripherals with the phone than have a backup battery in the keyboard, if it is possible to make that choice. My aim in this scenario would be to guarantee that the phone could not be damaged by the keyboard while a USB peripheral is connected to the phone.
Might it be possible to install a hardware switch somewhere inside the charger so that I could maintain both functions? E.g., naïvely considering the schematic, could I cut the trace from pins 16 and 17 of the IP5209 power management SOC to jumper 2, or intercept the trace from jumper 2 to wherever it's going, and splice in a physical switch?
Also, my sincere thanks to all who have responded. Your input is very much appreciated.
I see here for instance that it has been suggested by reddit user u/Odd-Version9895 that it should be safe to use the phone's usb port if the battery is disconnected, but I don't know on what authority that person is able to make that claim. It makes sense to me intuitively, but what do I know...
