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Mark the screen as broken ad update architecture
[[Category:Supported Devices]][[Category:Devices]]{{note|Currently the device is booting into a black screen, see {{issue|209|pmaports}}. Help with resolving this is welcome. Please remove this note when the issue has been fixed.}}
{{Infobox device
| manufacturer = Google (LG)
| name = Nexus 4
| codename = lg-mako
| image = File:LG Nexus 4 Weston.png
| imagecaption = LG Nexus 4 running Weston
| display = 768x1280 IPS
| memory = 2 GB
| architecture = armv7
| status_usbnet = Y
| status_flashing = Y
| status_touch = Y
| status_screen = N
| status_wifi =
| status_xwayland =
| status_fde = Y
| status_mainline =
| status_battery = Y
| status_3d =
| status_accel =
| status_audio =
| status_bluetooth =
| status_camera =
| status_gps =
| status_mobiledata =
| status_sms =
| status_calls =
| status_otg = Y
| booting = yes
}}
 
== Contributors ==
* ollieparanoid
* PabloCastellano and robb4 on IRC: Workaround for red screen bug [https://({{github.com/postmarketOS|54}}) == Users owning this device =={{Device owners}} == Installation =={{note|FDE (full disk encryption) seems to be broken for lg-mako currently, see {{issue|209|pmaports}}}}<pre>pmbootstrap initpmbootstrap install(enter fastboot, see below)pmbootstrap flasher flash_rootfspmbootstrap flasher boot</pre> To flash the kernel, you can choose <code>pmbootstrapflasher flash kernel</issues/54 #54]code> (but charging and power off doesn't work as expected anymore, see below).
== Entering &quot;Fastboot mode&quot; ==
Hold <code>Volume Down</code> + <code>Power</code>, let go of <code>Power</code> once the device display does something (e.g. turns from battery icon to black screen).
== What works Charging and power off (after flashing the postmarketOS kernel) =={{note|You don't have to flash the kernel! <code>pmbootstrap flasher boot</code> is also working!}}You can flash the postmarketOS kernel, but instead of charging the battery, it will boot straight into postmarketOS (or the on screen keyboard to type in the password). Right now, the best way to charge it from that situation is to boot the recovery TWRP.
* Touchscreen* Weston (has You can properly turn the red screen bugdevice off by unplugging the usb cable, but we have a workaround for that now 👍 ) == What does not work == * XWayland* The rest (Wifi, bluetooth, making callsthen booting into fastboot, then choosing power off...)* fbsplash only displays splash images very shortly, then goes to black screen
== Wifi ==
Looks like, we need to package the [https://github.com/LineageOS/android_device_lge_mako/blob/12ac6e9aeb32d5ac9fc832f2214ede2c7690d0a6/proprietary-blobs.txt#L152-L157 wcnss.* files] for wifi. A version from 2015 can be found [https://github.com/TheMuppets/proprietary_vendor_lge/tree/cm-14.1/mako/proprietary/vendor/firmware here]. It's a Qualcomm chip.
Looks like, we need to package the == Mainline =={{note|See [[https://github.com/LineageOS/android_device_lge_mako/blob/12ac6e9aeb32d5ac9fc832f2214ede2c7690d0a6/proprietary-blobs.txt#L152-L157 wcnss.* filesThe Mainline Kernel]] for wifi. A version from 2015 can be found [https://github.com/TheMuppets/proprietary_vendor_lge/tree/cm-14.1/mako/proprietary/vendor/firmware here]. It's a Qualcomm chipgeneral introduction to mainlining.}}
== Alternative kernels =='''power_graphic's mainlining progress is [https://gitlab.com/power_graphic/linux-postmarketos/tree/device-lg-mako here].''' Read on for generic instructions of what would need to be done.
It *should* be possible to run [[Currently we only have a downstream vendor kernel packaged, not the mainline kernel]] on the . The <code>lg-mako, maybe we need to write a display driver, but there's a </code> has the same [https://githuben.wikipedia.com/freedreno/freedrenoorg/wiki/DSI-Panel-Driver-Porting tutorial for itSystem_on_a_chip SoC]. I (ollieparanoid) didn't do enough research on this yet as the <code>asus- if you're interested in doing thisflo</code>, please talk to opendata26 from postmarketOS and robclark from on the freedreno projectlatter it is possible to run [http://web.archive.org/web/20181008184943/https://plus.google. With their help it should be quite feasiblecom/111524780435806926688/posts/fkQ1BMjNNcn Android on a kernel close to mainline].
This means, that most peripherals of the <code>mako</code> should work with mainline as well, once they are enabled in the DTS file. In fact, @vetzki reported in {{github|1079}} that the <code>mako</code> boots when using exactly the same DTS as the one from <code>flo</code> (this is not recommended, as misconfiguring your device like that may damage it). SSH appears to be working for a short time before getting kicked out, the display does not work.
A good way forward would be using a minimal version of the <code>flo</code> DTS, where everything but USB is deleted, and fixing USB / trying to get the display working with the [https://github.com/freedreno/freedreno/wiki/DSI-Panel-Driver-Porting DSI Panel Porting Guide]. The downstream DTSI files that need to be ported to the upstream kernel are probably located [https://github.com/LineageOS/android_kernel_lge_mako/tree/lineage-15.1/arch/arm/boot/dts here], and I guess the exact panel name appears when running <code>dmesg</code> after a successful boot (I did not verify this). Please expand this when you're working on it, and report your progress in #postmarketOS. Check out the [[Mainline Guide]].
These are not packaged yet in postmarketOS, feel free to package them.=== Partition Layout ===<div class="toccolours mw-collapsible mw-collapsed" style="width: 620px; overflow: auto;">Partition layout:<div class="mw-collapsible-content"><pre class="shell"># fdisk /dev/block/mmcblk0Found valid GPT with protective MBR; using GPT
* Freedreno backport to 3.4.0 (couldn't make it work out of the box and I suggest trying to get mainline working instead of spending time on this one)
* {{github|38}} Freedreno backport to 3.0.8
== Links ==Command (m for help): pDisk /dev/block/mmcblk0: 15269888 sectors, 3360MLogical sector size: 512Disk identifier (GUID): 98101b32-bbe2-4bf2-a06e-2bb33d000c20Partition table holds up to 28 entriesFirst usable sector is 34, last usable sector is 15269854
* [https://githubNumber Start (sector) End (sector) Size Code Name 1 1024 132095 64.com/postmarketOS/pmbootstrap/tree/master/aports/device/device-lg-mako Device package]0M 0700 modem 2 132096 133119 512K 0700 sbl1 3 133120 134143 512K 0700 sbl2 4 134144 138239 2048K 0700 sbl3 5 138240 139263 512K 0700 tz* [https://www 6 139264 184319 22.optiv0M 0700 boot 7 184320 229375 22.com/blog/building-a-nexus-4-uart-debug-cable Tutorial: UART debug cable]0M 0700 recovery 8 229376 230935 780K 0700 m9kefs1 9 230936 232495 780K 0700 m9kefs2 10 232496 234055 780K 0700 m9kefs3 11 234496 235519 512K 0700 rpm 12 235520 236543 512K 0700 aboot 13 236544 237567 512K 0700 sbl2b 14 237568 241663 2048K 0700 sbl3b 15 241664 242687 512K 0700 abootb 16 242688 243711 512K 0700 rpmb 17 243712 244735 512K 0700 tzb 18 244736 245759 512K 0700 metadata* [https://developers 19 245760 278527 16.google0M 0700 misc 20 278528 311295 16.com0M 0700 persist 21 311296 2031615 840M 0700 system 22 2031616 3178495 560M 0700 cache 23 3178496 15267839 5903M 0700 userdata 24 15267840 15268863 512K 0700 DDR 25 15268864 15269854 495K 0700 grow</pre></androiddiv></drivers#mako Official proprietary drivers]div>
== Photos ==
 
* [https://ollieparanoid.github.io/img/2017-05-26/mako/editor.jpg Weston running with framebuffer issues]
* [https://cloud.githubusercontent.com/assets/6033024/26761940/2e3273e0-4928-11e7-8800-0b4ddb14e239.jpg robb4 patched Weston to display the right colors]
 
== See also ==
* [https://github.com/freedreno/freedreno/wiki/Nexus-4 freedreno: Nexus 4]
* [https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/device-lg-mako Device package]
* [https://gitlab.com/postmarketOS/pmaports/-/tree/master/device/testing/linux-lg-mako Kernel package]
* [https://www.optiv.com/blog/building-a-nexus-4-uart-debug-cable Tutorial: UART debug cable]
* [https://developers.google.com/android/drivers#mako Official proprietary drivers]
* {{issue|1079}} The Nexus 7 DTB is so similar, it even boots
* {{issue|9|linux-postmarketos}} Attempt at writing a new DTS for the Nexus 4
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