[Lenovo ZUK Z2 (Plus) Questions & Answers] mrquincy:
Hello,

I am following along, approximately, with this thread on zukfans.eu. I am posting here because for some reason my registration attempts on that website are flagged as possible spam. I see many users from that thread also participate here.

First some information about my Zuk Z2 (Z2131) config and steps so far:

ZUI Version: 1.9.044 ST

Android Version: 6.0.1

Problems: I do not necessarily need to be on the bleeding edge, however my device does not seem to support LTE network use in its current state, which is unacceptable.

Step 0: USB debugging is enabled and functional

Step 1: ADB and fastboot are installed and functional in Debian Jessie

Step 2: I successfully received the Zuk bootloader unlock file (thank you Google translate) and applied it via adb and fastboot. (I re-enabled developer mode and usb debugging + usb 2.0 support)

Step 3: I have downloaded and extracted the contents of 2.5.334 ST QPST provided by zukfans user m_atze.

A user on this forum, liveroy, indicates that a manual install process can be achieved without using the QPST gui (link to thread)

I am relatively inexperienced with flashing phone firmwares, and I gather from liveroy's note that there may be an underlying concept about flashing firmware that I do not understand. Instead of attempting to find a very specific guide that takes me step by step to flash my device using fastboot, can someone offer some general facts about flashing firmware that apply more generally? Can I simply flash the images given below in numeric order? Is it safe to simply flash the recovery.img, which seems to be much larger than the other component img files?

Here are the contents of the 2.5.334 stable QPST archive:

adspso.bin keymaster.mbn system_14.img system_31.img uefi.mbn userdata_27.img userdata_44.img userdata_61.img userdata_79.img
apdp.mbn lksecapp.mbn system_15.img system_32.img userdata_10.img userdata_28.img userdata_45.img userdata_62.img userdata_7.img
boot.img mdtp.img system_16.img system_33.img userdata_11.img userdata_29.img userdata_46.img userdata_63.img userdata_80.img
BTFM.bin msadp.mbn system_17.img system_34.img userdata_12.img userdata_2.img userdata_47.img userdata_64.img userdata_81.img
cache_1.img NON-HLOS.bin system_18.img system_35.img userdata_13.img userdata_30.img userdata_48.img userdata_65.img userdata_82.img
cache_2.img patch0.xml system_19.img system_36.img userdata_14.img userdata_31.img userdata_49.img userdata_66.img userdata_83.img
cache_3.img persist_1.img system_1.img system_37.img userdata_15.img userdata_32.img userdata_4.img userdata_67.img userdata_84.img
cmnlib64.mbn pmic.elf system_20.img system_38.img userdata_16.img userdata_33.img userdata_50.img userdata_68.img userdata_85.img
cmnlib.mbn prog_emmc_firehose_8996_ddr.elf system_21.img system_39.img userdata_17.img userdata_34.img userdata_51.img userdata_69.img userdata_86.img
devcfg.mbn prog_emmc_firehose_8996_lite.elf system_22.img system_3.img userdata_18.img userdata_35.img userdata_52.img userdata_6.img userdata_87.img
emmc_appsboot.mbn rawprogram0.xml system_23.img system_40.img userdata_19.img userdata_36.img userdata_53.img userdata_70.img userdata_88.img
factory_1.img recovery.img system_24.img system_41.img userdata_1.img userdata_37.img userdata_54.img userdata_71.img userdata_8.img
factory_2.img rpm.mbn system_25.img system_4.img userdata_20.img userdata_38.img userdata_55.img userdata_72.img userdata_9.img
factory_3.img sec.dat system_26.img system_5.img userdata_21.img userdata_39.img userdata_56.img userdata_73.img xbl.elf
factory_4.img splash.img system_27.img system_6.img userdata_22.img userdata_3.img userdata_57.img userdata_74.img
flash_local.xml system_10.img system_28.img system_7.img userdata_23.img userdata_40.img userdata_58.img userdata_75.img
gpt_backup0.bin system_11.img system_29.img system_8.img userdata_24.img userdata_41.img userdata_59.img userdata_76.img
gpt_main0.bin system_12.img system_2.img system_9.img userdata_25.img userdata_42.img userdata_5.img userdata_77.img
hyp.mbn system_13.img system_30.img tz.mbn userdata_26.img userdata_43.img userdata_60.img userdata_78.img