Fairphone 4 (fairphone-fp4)

Contributors

 * Z3ntu

How to enter flash mode
For booting into fastboot, turn off the phone, hold volume down and plug in the USB cable.

Installation
Unlock the bootloader according to the official instructions.

UBports Installer
You can use UBports Installer v0.9.8 (or later) to flash a prebuilt image of postmarketOS onto your Fairphone 4. Just select postmarketOS in the OS selection and choose the desired UI and lean back!

Manually
You need to erase the  partition for the current slot with.

The rest of the installation is standard, but because the device contains A/B slots, you must watch out for the correct slot being active.

You have a few possibilities to flash the postmarketOS rootfs:
 * partition (> 100 GB space):
 * partition (6 GB space):
 * SD card:
 * Subpartition of  using fastbootd.

Resources

 * Repairability and recyclers information on Fairphone 4 - Schematics and other information

Partition layout
Disk /dev/sda: 117.27 GiB, 125908811776 bytes, 30739456 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: CFAF47FD-955A-B7E5-3B44-7CB199157323 Device      Start      End  Sectors   Size Name /dev/sda1       6       29       24    96K ALIGN_TO_128K_3 /dev/sda2      30       31        2     8K ssd /dev/sda3      32     8223     8192    32M persist /dev/sda4    8224     8479      256     1M misc /dev/sda5    8480     8607      128   512K keystore /dev/sda6    8608     8735      128   512K frp /dev/sda7    8736    16383     7648  29.9M metadata /dev/sda8   16384    67583    51200   200M oempersist /dev/sda9   67584  2217164  2149581   8.2G rawdump /dev/sda10 2217165 3790028  1572864     6G super /dev/sda11 3790029 30739450 26949422 102.8G userdata Disk /dev/sdb: 8 MiB, 8388608 bytes, 2048 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: C294D7C7-0358-526E-7C3A-26D0921BB1F3 Device    Start   End Sectors  Size Name /dev/sdb1     6   901     896  3.5M xbl_a /dev/sdb2   902   933      32  128K xbl_config_a /dev/sdb3   934  2042    1109  4.3M last_parti Disk /dev/sdc: 8 MiB, 8388608 bytes, 2048 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: 33EF572A-E407-059A-2A48-608D0AC95DF2 Device    Start   End Sectors  Size Name /dev/sdc1     6   901     896  3.5M xbl_b /dev/sdc2   902   933      32  128K xbl_config_b /dev/sdc3   934  2042    1109  4.3M last_parti Disk /dev/sdd: 128 MiB, 134217728 bytes, 32768 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: 7E252AAA-82B5-5A26-C6B5-D7DD4C57C080 Device    Start   End Sectors   Size Name /dev/sdd1     6    31      26   104K ALIGN_TO_128K_1 /dev/sdd2    32    63      32   128K cdt /dev/sdd3    64   319     256     1M ddr /dev/sdd4   320 32762   32443 126.7M last_parti Disk /dev/sde: 1.64 GiB, 1744830464 bytes, 425984 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: E7841167-3D00-D421-8846-7B7A871AB8A1 Device     Start    End Sectors   Size Name /dev/sde1      6     31      26   104K ALIGN_TO_128K_4 /dev/sde2     32    159     128   512K aop_a /dev/sde3    160   1183    1024     4M tz_a /dev/sde4   1184   1191       8    32K multiimgoem_a /dev/sde5   1192   1319     128   512K hyp_a /dev/sde6   1320  51239   49920   195M modem_a /dev/sde7  51240  51751     512     2M bluetooth_a /dev/sde8  51752  52775    1024     4M mdtpsecapp_a /dev/sde9  52776  60967    8192    32M mdtp_a /dev/sde10 60968  61223     256     1M abl_a /dev/sde11 61224  77607   16384    64M dsp_a /dev/sde12 77608  77735     128   512K keymaster_a /dev/sde13 77736 102311   24576    96M boot_a /dev/sde14 102312 102343     32   128K devcfg_a /dev/sde15 102344 102363     20    80K qupfw_a /dev/sde16 102364 126939  24576    96M recovery_a /dev/sde17 126940 126955     16    64K vbmeta_system_a /dev/sde18 126956 126971     16    64K vbmeta_a /dev/sde19 126972 133115   6144    24M dtbo_a /dev/sde20 133116 133627    512     2M imagefv_a /dev/sde21 133628 134139    512     2M uefisecapp_a /dev/sde22 134140 177659  43520   170M core_nhlos_a /dev/sde23 177660 177691     32   128K featenabler_a /dev/sde24 177692 178331    640   2.5M fsgbk_a /dev/sde25 178332 182427   4096    16M questdatafv /dev/sde26 182428 182555    128   512K aop_b /dev/sde27 182556 183579   1024     4M tz_b /dev/sde28 183580 183587      8    32K multiimgoem_b /dev/sde29 183588 183715    128   512K hyp_b /dev/sde30 183716 233635  49920   195M modem_b /dev/sde31 233636 234147    512     2M bluetooth_b /dev/sde32 234148 235171   1024     4M mdtpsecapp_b /dev/sde33 235172 243363   8192    32M mdtp_b /dev/sde34 243364 243619    256     1M abl_b /dev/sde35 243620 260003  16384    64M dsp_b /dev/sde36 260004 260131    128   512K keymaster_b /dev/sde37 260132 284707  24576    96M boot_b /dev/sde38 284708 284739     32   128K devcfg_b /dev/sde39 284740 284759     20    80K qupfw_b /dev/sde40 284760 309335  24576    96M recovery_b /dev/sde41 309336 309351     16    64K vbmeta_system_b /dev/sde42 309352 309367     16    64K vbmeta_b /dev/sde43 309368 315511   6144    24M dtbo_b /dev/sde44 315512 315543     32   128K featenabler_b /dev/sde45 315544 316055    512     2M imagefv_b /dev/sde46 316056 316567    512     2M uefisecapp_b /dev/sde47 316568 360087  43520   170M core_nhlos_b /dev/sde48 360088 360727    640   2.5M fsgbk_b /dev/sde49 360728 360728      1     4K devinfo /dev/sde50 360729 360984    256     1M dip /dev/sde51 360985 361048     64   256K apdp /dev/sde52 361049 363096   2048     8M spunvm /dev/sde53 363097 371452   8356  32.7M splash /dev/sde54 371453 371453      1     4K limits /dev/sde55 371454 371454      1     4K limits-cdsp /dev/sde56 371455 371710    256     1M toolsfv /dev/sde57 371711 373758   2048     8M logfs /dev/sde58 373759 374270    512     2M cateloader /dev/sde59 374271 390654  16384    64M logdump /dev/sde60 390655 390686     32   128K storsec /dev/sde61 390687 390814    128   512K uefivarstore /dev/sde62 390815 390821      7    28K secdata /dev/sde63 390822 390949    128   512K catefv /dev/sde64 390950 391205    256     1M catecontentfv /dev/sde65 391206 392229   1024     4M oembin /dev/sde66 392230 392261     32   128K swversion /dev/sde67 392262 425978  33717 131.7M last_parti Disk /dev/sdf: 128 MiB, 134217728 bytes, 32768 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes Disklabel type: gpt Disk identifier: 807C60B8-2098-B26C-7DC6-B11C3B173565 Device    Start   End Sectors  Size Name /dev/sdf1     6    31      26  104K ALIGN_TO_128K_2 /dev/sdf2    32   287     256    1M traceability /dev/sdf3   288   319      32  128K fpconfig_persist /dev/sdf4   320   351      32  128K fpconfig /dev/sdf5   352   991     640  2.5M fsg /dev/sdf6   992  1023      32  128K fsc /dev/sdf7  1024  2559    1536    6M tunning /dev/sdf8  2560  4095    1536    6M modemst1 /dev/sdf9  4096  5631    1536    6M modemst2 /dev/sdf10 5632 32762   27131  106M last_parti Disk /dev/sdg: 12 MiB, 12582912 bytes, 3072 sectors Disk model: KM2V8001CM-B707 Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 524288 bytes / 524288 bytes