[Guide] Lock bootloader Axon 7 (A2017G b9) - ZTE Axon 7 Guides, News, & Discussion

We need:
Axon7Toolkit
Recovery Stock
B9 ROM
1- Have OEM unlocking and USB debugging enabled in developer options.
2- Download and install the Axon7Toolkit.
3-Download the recovery stok and put it in the twrp folder of Axon7Toolkit.
3- Put the update.zip of the b9 on the memory card.
Run the Axon7Toolkit and choose option 11. We follow the steps that shows us on the screen so that we have to select the recovery.
We choose the recovery stock that we downloaded before and we give to accept, when it finishes and we will have the recovery stok again in our terminal.
We close the Axon7Toolkit and go to our terminal. Now we go into the recovery stock and go to "apply update from SD card" and choose the update.zip that we downloaded previously and installed it.
When you start the phone, you can configure it to reach the main screen.
Open the Axon7Toolkit again, select option 7 and follow the steps.
When you restart the phone you will have the bootloader closed again.
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"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
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}
Thank
bkores: Axon7Toolkit
ZTE: B9 ROM
Sorry for my English

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Will this work on the A2017U (US model)?

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kenet said:
We need:
Axon7Toolkit
Recovery Stock
B9 ROM
1- Have OEM unlocking and USB debugging enabled in developer options.
2- Download and install the Axon7Toolkit.
3-Download the recovery stok and put it in the twrp folder of Axon7Toolkit.
3- Put the update.zip of the b9 on the memory card.
Run the Axon7Toolkit and choose option 11. We follow the steps that shows us on the screen so that we have to select the recovery.
We choose the recovery stock that we downloaded before and we give to accept, when it finishes and we will have the recovery stok again in our terminal.
We close the Axon7Toolkit and go to our terminal. Now we go into the recovery stock and go to "apply update from SD card" and choose the update.zip that we downloaded previously and installed it.
When you start the phone, you can configure it to reach the main screen.
Open the Axon7Toolkit again, select option 7 and follow the steps.
When you restart the phone you will have the bootloader closed again.
Thank
bkores:Axon7Toolkit
ZTE: B9 ROM
Sorry for my English
Click to expand...
Click to collapse
I've rooted my a2017g and want to revert to complete stock. I want to sell the phone. Following your guide I'm stuck cause can't boot to bootloader. No matter which marshmallow build or recovery I use can't seem to bootloader. Any suggestions?

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Manually enter bootloader mode.

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kenet said:
Manually enter bootloader mode.
Click to expand...
Click to collapse
Thanks for your reply. When selecting bootloader from recovery (either any stock marshmallow or twrp) the phone just reboot.

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I am completly stock on b04 Nougat with unlocked bootloader. System is not changed. Can I just relock with 'fastboot oem relock'?
Gesendet von meinem ZTE A2017G mit Tapatalk

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Hi,
Has anyone tried to re Lock bootloader after oreo Official update?

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MacNavy said:
Hi,
Has anyone tried to re Lock bootloader after orso Official update?
Click to expand...
Click to collapse
I have and failed miserably. I couldn't lock it on three different versions of Nougat or Oreo. Everytime I boot to fastboot the phone just boots into system..

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Flash stock full EDL MM and you can lock the bootloader with a7tool.