Joerg Reisenweber wrote:

Hmm, usually it's the other way around - a recent u-boot in NAND is
better equipped to survive than the older u-boot in NOR. But it can't
hurt to try. All older hardware has a high degree of randomness
coming from the small SYS capacitor anyway.

This is on a rather new device 20080626, probably A6 (have no torx atm :-/ )
The effect is 100% reproduceable for both booting on old and not booting on new U_Boot. Only randomness is AUX-LED flashing very short (<0.1sec) when fail on normal boot w/o bat, whereas it flashes slow (~0.5s on) for 4 to "4.5" times with a dead Nokia BL-5C. Result no boot on new U_Boot anyway.

You might want to try the test with a USB cable to a PC (capable of 500mA) instead of the charger, or to apply the patch from my first email to your NAND u-boot.

My FR is a GTA02v5 with datecode 20080619 and it will not power up at all without a battery (due to the "small SYS capacitor" mentioned above?) so I can't test this scenario.


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