[Android Q&A, Help & Troubleshooting] ZoomZero:
[Resolved] Flashing ZTE Grand Memo 5S (aka ZTE Memo V5S)

Managed to resolve my problem... here is the step by step guide.

As usual, I'm not responsible if you brick your pone, is your decision to follow the below steps.

Some advices:

- Use a good quality USB cable which plugs firmly in the phone and PC

- Make sure that eventual power outage does not power off pc (ie use laptop)

- Do not unplug cable (accidentally) from PC/Phone while program running and last message is not: --- task is complete ---

- Try not using PC for other (resource consuming) activities.

- Be patient... some processes take quite long time

- Upload ROM which is designed for Your device!

- If you want to download ROM using SP Flash Tool, you need to dismount the phone as battery is not removable. Make an NANDROID

backup as this will backup absolutely everything... including user data.

1. Download MTK Droid Tools (because this is a MediaTek device)

2. Download SP Flash Tool (not used... just to have it in case you need to flash back a backup)

3. DOwnload a ROM (ZTE_V5S_WCDMA_Google_ROOT_140522.zip)

4. DOwnload a Patch for splash screen in Zip format (optional).

5. Copy to sd card:

- The downloaded ROM, rename to "update.zip". This is important otherwise will might give an error when flasing.

- The splash screen patch if you have it.

- Insert sd card in the phone.

6. Open MTKdroidTools.exe

- in few minutes your phone details should show up on Phone information tab.

7. Connect Phone via USB to PC

8. In USB computer options choose to connect with option "Connect to PC software", this will turn on USB debug

9. Root the phone, follow these steps:

- MTK Droid tools, after phone is read, press Root

- When prompted to create backup of ROM, press Yes (For the subsequent restoration of bla, bla... To make it now?)

- When prompted pack the backed up ROM, press Yes

- When Prompted choose between SuperSU or Superuser, choose SuperSU. SuperSU is still supported by develper, this is why.

- Click on IMEI/NVRAM and press backup... you may need that as well if something goes wrong.

Now you have you phone rooted and the original ROM zipped in the backup folder under MTK Droid Tools folder.

- Reboot the phone. You might have to root again but no need to save anything.

10. MTK Droid tools, after phone is read, go to the other tab: root, backup, recovery

11. If you wish, you can make another backup of your ROM with ROOT privileges this time... Press Backup and wait to complete.

12. Press button "To prepare blocks for Flashtool", select .md5 file from the last backup folder you made.

- Now you have the copy of the original software

13. Position radio buttton on the option: "To use boot from phone"

14. Press button "Recovery and Boot"

- When prompted "To make CWM recovery automatically?", press Yes

- When prompted to upload ony if phone is loaded, press Yes

- When prompted to "Install created recovery to phone?", press Yes

- when prompted "To reload phone in recovery to phone?", press Yes

15. You are now in recovery mode, to navigate up-down use Volume button, to choose/execute an item use power button.

16. Navigate to "wipe data/factory reset" then execute, on the next screen navigate to "Yes - ..." then choose it

17. Navigate to "whipe cache partition" then execute, on the next screen navigate to "Yes - ..." then choose it

18. Navigate to "install zip from sdcard" then execute, on the next screen navigate to "choose zip from sdcard"

19. Now you see content of SD Card, navigate to ROM file (update.zip) then execute, on the next screen navigate to "Yes - ..."

then choose it

20. Once finished GO back then reboot the phone

21. It will take a bit longer to load first time

22. To install the splash screen go to recovery mode again, choose to update from SD then confirm... same steps as for the ROM.

23. Open google play, login, a number of updates will show up, update all Google Play components

To get into recovery mode you have few options, i'll give one:

a. Turn off phone

b. Press and keep pressed Volume Up

c. Press and keep pressed Power button

d. Keep both pressed until splash screen shows up then release both

Now you may want to get rid of chinese stuff. To do so, folow these steps:

1. Power your phone

2. Open MTKdroidTools.exe

3. Connect Phone via USB to PC

4. In USB computer options choose to connect with option "Connect to PC software", this will turn on USB debug

5. After phone is loaded press Root (just to get privileges)

6. When prompted "Receive root privileges bla, bla...", choose yes

7. Press Super User... choose to user SuperSU

8. Press Build.Prop

9. Press Delete china... this will remove the only keyboard as well which is chinese so skip this step.

10. Press reboot

11. Now most of the chinese stuff is gone

12. Download and install:

- More locale or locale 2 if you want interface in a certain language

- Swiftkey to get a decent keyboard (disable chinese one)

- 3D Digital weather

- Anything else yo may want.

13. Use system optimiser to uninstall the rest of the Chinese apps

You are done... I have done this walkghrough while I was mooding my phone. Dont ask questions on errors as I have no idea. These

steps where collected while various forums for ready 3 days.

Hope someone will find useful... good luck.