Installation / Removal > Other - Installation/Removal
Surfans F20 v3.4 - jztool doesn't seem to activate the screen
speachy:
--- Quote from: jdharper on October 09, 2024, 09:47:23 PM ---They have gotten back to me with the 3.4 firmware.
--- End quote ---
Thanks for doing that!
The native port is not an option on these players until we can figure out what changed; in the mean time, I patched their firmware updater so that the hosted port can be used:
https://download.rockbox.org/bootloader/surfans/F20-v34-patched.upt
Please let us know if this works; follow the instructions in the wiki for the hosted port installation.
EDIT: The v3.4 firmware image is incompatible with all ErosQ/K-series players; they will refuse to install it altogether.
jdharper:
OK, progress!
The Firmware Upgrade tool accepted the patched file. Now when I boot up the device, I get a menu of options (Tools, Rockbox, or Hiby Player). Opening Hiby Player works, and opening the Tools menu gives me a list of options.
When I select Rockbox, the screen turns off and the blue light turns off. I recorded a video, and was able to catch the message "Battery Empty! Recharge! Shutting down!" The stock firmware says the battery is at like 60%.
I'm letting it charge overnight and we'll see what it looks like tomorrow. But that makes me wonder if that's what's been happening with the bootloader too, if it's been reading the battery as empty and shutting down immediately (even though it was plugged into my computer).
EDIT: Charged it overnight and it does the same thing now, Rockbox shuts down with a battery empty error even on a full charge.
speachy:
--- Quote from: jdharper on October 10, 2024, 01:25:07 AM ---When I select Rockbox, the screen turns off and the blue light turns off. I recorded a video, and was able to catch the message "Battery Empty! Recharge! Shutting down!" The stock firmware says the battery is at like 60%.
--- End quote ---
Ugh, that tells me this new base platform changed up how they report battery levels.
The good news is that the bootloader integration worked, so we have access to adb now. If you can install 'adb' on your system, when turning the device on, go to Tools / ADB Start, then on your system, plug the player in and run 'adb shell' to get a shell on the device; then run 'find /sys/class/power_supply ' and send us the output.
jdharper:
Here you go:
/sys/class/power_supply
/sys/class/power_supply/ac
/sys/class/power_supply/usb
/sys/class/power_supply/axp_battery
speachy:
--- Quote from: jdharper on October 10, 2024, 09:32:24 AM ---/sys/class/power_supply/axp_battery
--- End quote ---
Lovely, they renamed that. Easy enough to fix.
Two more requests in the mean time:
From within the adb shell, can you send us the output of 'dmesg' and 'amixer contents' ?
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