**** BEGIN LOGGING AT Sun Apr 21 02:59:57 2019 Apr 21 05:29:18 I am using the Galaxy Note 3 as a camera. This is what happens when I try to power on the LG G5 with no battery installed but with the USB power supply connected: the display on the G5 comes on but only alternates between these two frames. I have not yet researched running the G5 without a battery but it seems like the G5 as is already partially runs without a battery installed, which surprised me. Apr 21 05:29:18 https://lh3.googleusercontent.com/-MhE4Xx2PBTQ/XLv3WDBF26I/AAAAAAAACak/qeNQRmhewvYNu4kABkfMU5inUDmZh1dCQCK8BGAs/s0/4805845363223240073%253Faccount_id%253D7 Apr 21 05:29:18 https://lh3.googleusercontent.com/-xwk7nu356CQ/XLv3XQXCaXI/AAAAAAAACa0/b75QhwzJyZUZln_vYHsHWC5XN8CPdAu1wCK8BGAs/s0/1986510622084773926%253Faccount_id%253D7 Apr 21 05:34:11 Actually, the screen comes on as soon as I connect the USB power supply and pressing Power on the G5 seems to not change anything. Apr 21 05:36:37 The G5 is really lightweight without a battery. Apr 21 08:24:21 https://www.youtube.com/watch?v=bOzwYcNtSFI Apr 21 08:24:21 Apparently at least one variant of the LG G4 can run from power from the USB connector if the battery is removed while the OS is booting after the computer is powered on with the battery connected. Is the firmware of the computer really so lame that it has an artificial limit that it will not boot the OS unless a battery is present? If yes then what is the reason for this behaviour? It does not make sense to me from an engineering perspective so maybe it Apr 21 08:24:21 makes sense from a business perspective? Apr 21 09:33:08 brolin_empey: PDAs dont make sense whatsoever **** BEGIN LOGGING AT Sun Apr 21 17:13:29 2019 Apr 21 18:04:01 buZz: Hmm? Are you implying that the cellular modem requires the battery? Apr 21 18:17:45 hmm, it shouldnt Apr 21 18:27:44 buZz: Then what did you mean? Apr 21 18:34:07 that these classes of devices dont really seem to try to get such fun methods of usage working Apr 21 20:56:26 Maybe Maemo isn't able to boot off a 500 mA power source. Apr 21 20:56:34 (without throttling) Apr 21 20:57:29 If I'm using the CPU, Maemo will often tell me that it's consuming more power than is being provided by the charger. Apr 21 21:41:17 Maemo can't use the wall charge to boot, it has to boot to ACT_DEAD before charging will start. Apr 21 21:49:13 Need to build some small servers for remote deployment, thinking SBC or maybe NUC type size. Must be able to run a full modern amd64 distro tho. Any suggestions? Apr 21 22:53:56 I don't think the question is about what it currently does, but why .. even if there are good reasons why the device can't pull a higher current before the OS has started, I imagine it wouldn't be impossible to boot Linux on 100 mA to the point where it can negotiate the higher current. Apr 21 22:54:10 Presumably they just didn't think it was worth the effort. Apr 21 22:54:36 maybe you'd need to set the clock speed in the bootloader or something, dunno how these things work. Apr 21 22:55:58 but even if you overcome that, you still need to make sure it doesn't draw whatever it has negotiated, which would normally be 500 mA unless a dumb source is used. Apr 21 23:50:08 https://www.youtube.com/watch?v=CNNmBtNcccE Apr 21 23:54:49 basically all phones can't boot from standard wallcharger alone since modem will draw bursts of >2A which the wallwart can't provide. I ran N900 from wallcharger alone for hours, after it booted with battery **** ENDING LOGGING AT Mon Apr 22 02:59:56 2019