hardwarerelated:mobile_phone:samsung

Samsung Galaxy S7

Codename: Project lucky, model SM-G930FD
Using in Japanese softbank network, needs these APN settings:
- 3G APN: APN name: smile.world, Username: dna1trop, Password: so2t3k3m2a
- 4G (LTE) APN: APN name: jpspir, Username: sirobit, Password: amstkoi, AuthType: PAP
rooting the Galaxy S7 with Linux
- Samsung shipped 2 new major Android versions, 7 and 8.0 to the device. This seems to be the end, so in early 2019 I started to use LineageOS on the Galaxy S7.
- LineageOS details:
  - https://wiki.lineageos.org/devices/herolte/install worked for me, with one difference: after flashing the recovery image with 'heimdall flash –RECOVERY ..', the doc asks to reboot into recovery with “Volume Up + Home + Power”. At that point, I can just switch off the device with “Volume Down + Home + Power”. After turning it on again (pressing “Power”), and then immediately pressing “Volume Up + Home + Power”, I was able to proceed.
  - I planned to go without any spying, but my dependency on google maps is stronger, so I installed gapps.
  - LineageOS 16 (Android 9) image I tried: forum.xda-developers.com

fdroid store
- Amaze file manager
- Magisk, for getting root
- K-9 Mail, Syncthing, Tiny Tiny RSS, Tusky for Mastodon
- FFUpdater (installs and updates firefox)
yalp store
- This is in fdroid, it can act as proxy to fetch from google store - for apps which are not in fdroid
- the Line app is not in fdroid repos
- EBookDroid (pdf reader), EBPocket Free (Japanese dictionary reader), Musicolet Music (player, can also conveniently seek in podcasts), TWRP application, Sony Headphones
- Yahoo!乗換案内 (Tokyo train connections), Yahoo Map
- Google Japanese input
google playstore
- I install the opengapps app and then pico opengaps (alternatives: MicroG, MindTheGapps)
- Via playstore, I install the applications which I purchased on playstore.
- PeakFinder AR
- Tiny Tiny RSS unlocker
- Google maps

Android 4.2.2 on the s4 mini does not support USB mass storage. MTP is an option.
To use MTP
- On the S4 mini, one has to activate “developer” (tap “system release” in device info seven times) and “debug”.
- On the S6, it works just after connecting
I can access the device with simple-mtpfs
Nowadays, I rely on this software which shares via network: https://syncthing.net/

For recording Japanese lessons etc.