Samsung Galaxy J1 mini (samsung-j1mini3g)
Appearance
This device runs a Downstream kernel. Some UIs will not work, and most features (3D acceleration, audio, etc.) may be broken. |
![]() J1 mini running XFCE4 | |
Manufacturer | Samsung |
---|---|
Name | Galaxy J1 mini |
Codename | samsung-j1mini3g |
Released | 2016 |
Type | handset |
Hardware | |
Chipset | Spreadtrum SC8830 |
CPU | 4x ARM Cortex-A7 |
GPU | Mali-400 MP2 |
Display | 480x800 TFT |
Storage | 4 GB |
Memory | 768 MB |
Architecture | armv7 |
Software | |
Original software The software and version the device was shipped with. |
Android 5.1.1 |
Extended version The most recent supported version from the manufacturer. |
Android |
postmarketOS | |
Category | downstream |
Mainline Instead of a Linux kernel fork, it is possible to run (Close to) Mainline. |
no |
pmOS kernel The kernel version that runs on the device's port. |
3.10.106 |
Device package |
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Kernel package |
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Flashing It is possible to flash the device with pmbootstrap flasher . |
Partial
|
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USB Networking After connecting the device with USB to your PC, you can connect to it via telnet (initramfs) or SSH (booted system). |
Works
|
Battery Charging and battery level reporting works |
Partial
|
Screen Display works. Ideally with sleep mode and brightness control. |
Works
|
Touchscreen |
Works
|
Multimedia | |
3D Acceleration |
Untested
|
Audio Audio playback, microphone, headset and buttons. |
Untested
|
Camera |
Untested
|
Connectivity | |
WiFi |
Untested
|
Bluetooth |
Untested
|
GPS |
Untested
|
Modem | |
Calls |
Untested
|
SMS |
Untested
|
Mobile data |
Untested
|
Miscellaneous | |
FDE Full disk encryption and unlocking with unl0kr. |
Untested
|
Sensors | |
Accelerometer Auto screen rotation works in desktops e.g. Phosh or Plasma Mobile |
Works
|
Contributors
- dolphinchips
Maintainer(s)
- dolphinchips
Users owning this device
- DolphinChips (Notes: Playground)
How to enter flash mode
Hold
+ + buttons to enter flash mode. Hold + + buttons to enter recovery mode.Installation
Currently pmbootstrap flasher flash_rootfs
fails at 17%, but pmbootstrap flasher flash_kernel
works, so there are two ways:
- install on sdcard (untested)
- install via android recovery zip
Wifi
To make wifi work, we need some binary blobs (download and wcnd, both located at /system/bin/ in stock rom), so we can:
- use libhybris
- see how Samsung Z1 handles it in Tizen (uses some Spreadtrum chip)
- recompile them from leaked sources
Images

See also
- pmaports!533 initial MR
- Kernel source