Differences

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--- doc:appunti:hardware:oukitel_g2 [2025/08/29 12:54] – niccolo
+++ doc:appunti:hardware:oukitel_g2 [2026/11/01 08:42] (current) – [Best Flashing Tool: highly suspect malware] niccolo
@@ Line 1: / Line 1: @@
 ====== The Oukitel G2 ======
+===== Specs =====
+^ Screen             | IPS LCD 6.0 inches, 92.7 cm2  |
+^ Size               | 166 x 81.1 x 15.1 mm  |
+^ Weight             | 373 g  |
+^ Screen resolution  | 576 x 1156 pixels  |
+^ OS                 | Android 14  |
+^ Chipset            | Unisoc T606  |
+^ CPU                | Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)  |
+^ GPU                | Mali-G57 MP1  |
 ===== Rooting not longer allowed =====
 <code>
 Dear Oukitel,
 I recently purchased a G2 smartphone, which I intend to use as
 a GPS navigation system on a fleet of motorbikes.
 To install some custom procedures, I need to root the device,
@@ Line 17: / Line 28: @@
 Please, can you provide the instructions to root the G2 model,
 as you provided for the Android 13 phones? (as seen here:
 https://oukitel.uk/blogs/news/how-to-root-android-13).
 Thank you.
 </code>
@@ Line 28: / Line 39: @@
 Subject: Re: New customer message on August 27, 2025 at 8:37 pm
 Dear customer,
 Thank you for choosing our OUKITEL products and services,
 we are deeply honored.
 We are sorry to tell you that our phones don't support
 root now, so we can't provide you with similar method.
 Best regards,
 From OUKITEL
 </code>
+===== Cannot fastboot from custom image =====
+**[[https://www.hovatek.com/forum/thread-48912.html|Oukitel based on Unisoc chip: is it possibile to fastboot boot from a custom image?]]**
+I tried to root an **Oukitel G2** smartphone, which is based on the Unisoc T606 chip. I tried the procedure based on the script **signidentifier_unlockbootloader.sh**, which uses the identifier token provided by fastboot and an Oukitel leaked RSA key:
+<code>
+./signidentifier_unlockbootloader.sh 473230303030303030303036353835 rsa4096_vbmeta.pem signature.bin
+</code>
+Unfortunately flashing the **signature.bin** file obtained in that way does not work (I used the required modified **fastboot** binary):
+<code>
+./fastboot flashing unlock_bootloader signature.bin
+downloading 'unlock_message'...
+OKAY [  0.001s]
+unlocking bootloader...
+FAILED (remote: Unlock bootloader fail.)
+</code>
+May be this phone is locked with a different **rsa4096_vbmeta.pem** key.
+Does anyone know if it is possibile to boot using fastboot and a custom kernel image?
+I extracted the **boot-gki.img** file from the ROM image, then I patched it using Magisk 26.4 (patching seems successfully), ten in bootloader mode I executed:
+<code>
+fastboot boot magisk_patched-26400_Y9t93.img
+</code>
+But it seems that the phone starts with the stock kernel image, because Magisk says it is not installed and root is not available.
+  * Yes, I enabled the Developer options => OEM unlocking
+  * Yes, I tried the standard fastboot flashing unlock, fastboot oem unlocking, etc.
 ===== Special boot menus =====
@@ Line 57: / Line 101: @@
 {{.:oukitel-g2:oukitel-g2-fastbootd-menu.jpg?320|Oukitel G2 fastbootd menu}}
+===== Best Flashing Tool: highly suspect malware =====
+Online, you can find posts discussing a piece of software called **BFT Tool** (**[[https://bestflashtool.com/|Best Flashing Tool]]**, by Miracle Team), which supposedly can unlock the bootloaders of smartphones equipped with Unisoc (formerly known as Spreadtrum) chips.
+The download links all point to anonymous URLs from MediaFire or MEGA.nz, and the various instructions tell you to disable your antivirus software to complete the installation — all of which are extremely alarming signs.
+I decided anyway to test the program by installing it on a "sacrificial" Windows PC. In my assessment, Best Flashing Tool falls somewhere between being **unreliable software** and **outright malware or a scam**.
+These are the md5sums of the 1.6 and 1.7 installer files:
+<code>
+# Malware!
+c075f8660444f866c05b5b7c902e2882  BFTSetup1.6.rar
+ba2afe11365af9113ad8b6119d7c6efa  BFTSetup1.7.rar
+5070218bc01ebd9b3dc3d285c63e0bf0  BFTSetup1.7.exe
+</code>
+Every antivirus program flags it as malicious (e.g., Avast: **Win32:MalwareX-gen**, BitDefender: **Gen:Variant.Yogi.11731**, etc.). If you proceed with the installation anyway, the program refuses to launch, displaying the error: "Failed to check for new version."
+{{.:oukitel-g2:bft-error.png?direct&320|Best Flashing Tool malware not working}}
+The same result was obtained with version 1.6 and 1.7 on Windows 10 Pro.
+===== Web References =====
+  * **[[https://github.com/nethgraves/Unisoc_UBL]]**