Regarding USB Power and Modem Initialization
#3
(08-25-2021, 08:08 AM)wibble Wrote: The short answer is I don't think you can do that without significantly reworking the power subsystems. The modem (and the wifi IIRC) use a direct connection to the battery to more efficiently provide the high peak currents they can draw during transmission. There's quite a bit of discussion about the details of the power subsystems in the thread about pogo pin power. I think it included what could be done using USB power only.
https://forum.pine64.org/showthread.php?...+pin+power

Thanks for the guidance! I'll be messing with this in the near future and if I've any updates I'll be sure to post about it.
  Reply


Messages In This Thread
RE: Regarding USB Power and Modem Initialization - by vidual - 08-26-2021, 11:48 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
Bug PinePhone modem keeps "disappearing" Kevin Kofler 21 24,143 09-11-2026, 09:18 AM
Last Post: idice
  Pinephone - broken power button rorus 14 26,599 05-17-2026, 03:52 PM
Last Post: EuvzO8
  Modem Issues with the Pinephone Temmie19 5 7,333 07-02-2025, 12:50 PM
Last Post: biketool
  FOSS fw problem - PinePhonePro, EG25 modem dukla2000 5 7,095 02-05-2025, 02:30 AM
Last Post: biketool
  Supported Carrier and Modem Bands NachoMomma 4 9,439 03-23-2024, 02:00 PM
Last Post: Kevin Kofler
  power circuit can't charge battery and can't supply enough power for modem or wifi vortex 2 5,451 02-17-2024, 04:15 PM
Last Post: vortex
Thumbs Down Battery Issue or Power Management IC? bcoyle 2 5,648 03-20-2023, 12:54 AM
Last Post: bcoyle
  modem not working michelinux 0 2,708 02-16-2023, 04:56 AM
Last Post: michelinux
  modem not detected al_x 3 9,423 02-15-2023, 11:17 AM
Last Post: fxc
  firmware udate Quectel EG25-G modem alwi 7 16,174 07-06-2022, 01:43 PM
Last Post: user641

Forum Jump:


Users browsing this thread: 1 Guest(s)