Sir,
Recently i hav flashed row in my lenovo s850 &it worked but when i sestarted my device for the first time it didn't shown me sims so i hav googled it, it said to type *#06# it showed me invalid imei, please someone help to solve this problem..
First root your phone then Install Root explorer.
Second open root explorer go to data and delete nvram folder
Third reboot your phone go to Recovery and wipe data or factory reset.
Then Reboot
How to Fixing Lenovo S850 no Service Issued, 100% Work - Got this posting from the comments one of blog reader, a lot people got this problems when modified Lenovo S850. Beside Lenovo S850 when you got invalid IMEI and no service issued on your device, you can fix it by restore the IMEI and it will fix the problems other then Lenovo S850.
I don't know this guide can be use for other china device or just Lenovo S850 so if you try to another please give some word on comment.
No service is cause by NV file corrupt, so using flash tool we gone read back NV file and the flash it back to our device, if you do right this procedure than it will revive your device from dead. Please read careful step by step because it think it will complicated.
Disclaimer : This guide for educational purpose only, We not responsible if your device bricked after following this tutorial. (DWYOR)
Download
• SP Flash Tool v3.1320 ↦ for this guide actually you only need the flash tool, you can use any version of flash tool but recommended to use v3 flash tool.
• S850_ROW_S215_150114 ↦ 1.1 Gb, because this guide is for Lenovo S850 then you need to download Lenovo S850 stock ROM, for another china device then you need to search it on the need.
• NV_RAM ↦ Lenovo S850 NVRAM block, cannot be use for another device.
How to Fixing Lenovo S850 no Service Issued, 100% Work
1. Download all files and place on the same folder, so you can easy to search the needed files. Extract the both files too and then go to flash tool extracted folder, run flash_tool.exe for windows 7 or later please use administrator privilege
2. After you can see the flash tool windows, now pressALT + CTRL + V. This will make flash tool run onAdvanced Mode, you can see on the flash tool windows bar. On the Download tab click Scatter-Loading button and the navigate to ROM extracted then select MT6582_Android_scatter.txt this will load all ROM files to flash tool.
3. Click Windows ↦ Write Memory this will add a tab, then select the Write Memory tab, like on the below picture
4. Open scatter file that you find on the extracted ROM, using word pad or notepad. Search for NV word, you will see three address on the scatter filelinear_start_addr, physical_start_addr andpartition_size. Put the linear_start_add on the Begin Address (Hex) and partition_size on the Container Length (Hex)
5. Click on Open RAW Data, select the NV_RAM file that already downloaded
6. Last click Write Memory button, turn off your device because Lenovo S850 using non removable battery you must make sure that your device is completely turn off, connect your device to flash tool using USB cable and flash tool will recognize your device and begin to start flashing process, wait until you can see GREEN CIRCLE in the middle of flash tool.
7. Done, disconnect then try to turn on your device and normal boot. See if the service already on and can be use on your device.
Done, Congratulations i hope your Lenovo S850 already fix and can be use to make call and receive messages again. Please leave comments if you found any problem or broken link regarding this guide
Credit: GSM Somanadhan (smartphon2016 blogspot in)
Thanks for your reply, does it will replace my serial number also?
My device serial number is also invalid.
hello, i have a Cubot dinosaur with the MT6735A
i want make a full backup of my phone with spflashtool via readback.
i taked a scatter file from original rom downloaded from cubot forum
form me droid tool not detect the device, also with usb debug enabled, how to convert the ROM_0 ready for spflashtool. Is there other tool or workround to do this?
thanks
Hi everyone,
My phone model is Lenovo A850+
My phone cannot detect by pc after i connect it by usb.
The usb is working well because my pc can detect other phone using it.
After i connect my phone to my pc, my phone is not charging because the battery not become hot.
I have download all driver.
How my phone dead :
1. I mix the scatter file.
2. I mix mt6592 (my phone scatter file) with mt6580 (Symphony i70 scatter file).
3. I open both scatter file with notepad++.
4. I copy what i want from symphony scatter file and paste it to my lenovo scatter file like preloader( and many more).
5. I copy all from partition_name to reserve (except partition_index).
6. I save my editted lenovo scatter file to one folder.
7. I take the file that i editted in the scatter file just now ( for example preloader), I copy the symphony i70 preloader.bin file to
same folder as my editted lenovo scatter file.
9. I open up sp flash tool.
10. At scatter loading file, I use the scatter file that I editted.
11. Then I choose Format All + Download.
12. Then I flash my lenovo phone.
13. The flash tool is working well until about 96%.
14. It suddenly show an error.
15. I dont remember what it say( i just click ok).
16. I disconnect my phone and try to turn on but nothing happen.
17. Then I connect my phone back but nothing happen (no sound on pc,no hardware changes at device manager,my phone dont
react).
I hope that you can understand enough what I want to say.
Please tell me what should I do.
=================================================================================================
**********************************************READ THIS BEFORE YOU INSTALL THIS******************************************
=================================================================================================
I am not responsible for dead phones or dead sdcards, remember, YOU chose to install it and if you point your finger at
me for broken devices i´ll laugh at you****************************************************************************************
This will erase your data********************************************************************************************************
=================================================================================================
So, there is a 8Gig version of this, that does not need this, but 4gig one does.
I spent some time researching this.
Requirements:
-SP Flash Tools 5.1xxx (https://spflashtool.com/download/)
-Flash file of 4034x (https://www.blogthetech.com/flash-file-alcatel-one-touch-pixi-4-4034x-firmware-download-stock-rom/)
-My custom scatter file (https://drive.google.com/file/d/1RNbZGtsBn-Axy7wnnCXDAjR2aq4hkQG_/view?usp=sharing)
-A working pc with Windows
-A working brain -p)
INSTALLATION------------------------------------------------------------------------------------------------------------------
1-Extract the flash files to the desktop
2-Replace the scatter file with my custom one
3-Open SP Flash Tools
4-Select my scatter
5-If it doesn´t add match the files instantly, match them manually
6-Where it says "Download Only", put it in "Format All+Download"
7-Take out the battery of the phone
8-Click in "Download"
9-Connect the phone
10-Wait for it to finish
11-Remove the usb cable
12-Put the battery back in
13-Enjoy!
=================================================================
You can ask me questions if you need
=================================================================
Could you please send me a link to the custom scatter file please?
I just upgraded the phone using this scatter file, after installing the drivers and connecting the phone my windows 7 laptop gave me BSOD.
I then tried again this time the sp tool connected straight away.
After the phone rebooted i noticed it felt a lot more fluid and faster, i didnt get much in the way of space. but for a back up phone whist doing tricks on your main burner, i can use this phone now. Thanks stevegsames !!
Hi the 2nd flash file and the custom scater file don't open.
Can you send me the links please?
Successfully rooted Simbans 10" Excello Tab using Magisk Manager & SP Flash Tool
Rooting the Simbans 10' Excello Tab. Please note the usual warnings before you attempt rooting an Android device. You're probably voiding your warranty. You risk bricking your device. Neither I, nor the website where you found my words, assumes responsibility for your actions
I bought a 10" Simbans Excello Tab running Android Pie (9) for $130 USD in March 2020. I've rooted all of the ~20 Android devices I've owned. It seemed to me that $130 was a bargain price, but rooting it would be difficult. I found no reports of other owners successfully rooting the Excello Tab. I couldn't even find the OEM firmware for it on the mfr website, so I emailed them on the 4th of July asking for the firmware.
At my request, Simbans added the Excello firmware to its website (https://www.simbans.com/restore.html) on 5 July 2020, along with an SP flash tool, and both PDF and video flashing instructions. Prior to my request, Simbans only listed firmware for its Tango and Picasso tablets. N.B. Although I refer to the Excello firmware by different names, it's ExcelloTab 9.0 Base V1.rar on the official Simbans download site. Similarly, what I call the SP Flash Tool is the Reinstall Tool for Android 9.zip on Simbans' website.
The SP flash tool was a clue to how to root the Excello. SP flash tool is for flashing firmware onto Mediatek chips, which are used in several different phone and tablet brands, including the Excello Tab.
PREPARE YOUR PC. Download the Excello firmware rar file, SP Flash Tools zip, and Extract your SP Flash Tools zip file into a folder, and the Excello firmware rar file into another folder. Although most of you will be using Windows, n.b. there are Linux versions of the SP Flash Tool, and the 64 bit Linux version saved me from a hard brick situation. While you're doing that, download the Windows 10 MTK VCOM USB preloader drivers for your desktop computer.. Thoroughly vet your Windows drivers, following online guides. When you connect your powered off Excello Tab to your PC with SP Flash Tool running, you want to see the VCOM driver recognized (check with Device Manager). When you connect it with MTK Droid and Root Tool (which doesn't support Android >4.5) running, you want to see a different MTK USB driver recognized.
PREPARE YOUR EXCELLO TAB. Enable Developer Options and turn USB debugging on. You do not need to unlock the bootloader (so leave OEM unlocking off in Developer Options) to root the Excello Tab. Download and install root checker and Magisk Manager apps onto your Excello Tab.
In order to root the Excello, you need to hack the Excello's boot.img boot partition. But, we didn't get that file in the Excello firmware archive from Simbans. We will have to capture the Excello's boot partition. We do it by reading back the boot.img partition from RAM. There doesn't appear to be a simple boot.img file loaded onto the Excello. It'builds the boot partition from other files, like a boot-sign.img file.
Change the SP Flash Tool to allow capturing partitions, like the boot.img boot partition. Go to your SP Flash Tools folder, and edit the option.ini file in the SP Flash Tools archive. It's a text file, so use a text editor like Windows' Notepad or Ubuntu's Gedit. Find the [ReadBack] section of the file, and change ShowByScatter=false to ShowByScatter=true. Save your changes.
Run the SP Flash Tool as administrator by running the (Windows) flash_tool.exe with shift-right click on the file, or (Linux) sudo ./flash_tool.sh program. Set it up by selecting the Download tab near the top of the window. Choose your Download agent from the extracted firmware folder. Use the MTK_AllInOne_DA.bin choice. The correct Scatter-loading file for our Excello Tabs is the MT8163_Android_scatter.txt file. If you placed all of the extracted files from your Excello firmware rar file in the same location as the scatter file, the SP Flash tool will populate the fields for boot, recovery, etc. Correct any errors now, before you try to flash or use something that's so out of place that it bricks your device. You can click on any erroneous files and correct their path or name.
When you're ready to capture/readback your boot partition, select the Readback tab, and select only the boot partition. Make sure your Excello Tab is powered down and unplugged from the computer that's running the SP FLash tool. Choose the Read Back action. The tool will wait for you to connect your device. Hold the Volume Down button on your Excello Tab, connect the device, and release the volume down button when the red bar appears at the bottom of the tool window. The boot partition gets written as ROM_10 in your SP Flash tool folder. The boot partition will differ on different MT chip architectures, and different partitions. If your next action was to readback your Excello's (MT8163's) recovery partition, it would be saved as ROM_11, and so on.
If the readback succeeds, a green check mark icon appears on the tool screen, and your boot partition has been captured in a 10.8 MB ROM_10 file located in the SP Flash Tool folder..
Disconnect your Excello, power it up, copy the ROM_10 file to your Excello in a location you will remember, and rename it boot.img. I put mine in my Excello's internal memory's Downloads folder.
Run the Magisk Manager app on your Excello, It will tell you Magisk is not up to date. Click the INSTALL choice, confirm with yes, and choose Select and Patch a file as your method, Navigate to your just-saved boot.img file, and let Magisk do its thing. When it finishes, you will have a rooting magisk_patched.img to replace your stock boot.img. Copy the magisk_patched.img to your Excello firmware folder.
Before you flash your modified boot.img file (magisk_patched.img) to root your Excello, you have to modify your MT8163_Android_scatter.txt file (it's in your firmware folder) to only flash up to and including the boot partition. Load that scatter file in your text editor, and find the partition_name: boot. For the MT8163 chip, it's in the section starting with partition_index: SYS10. As you read about partition_index SYS10, you realize that SYS10 is where ROM_10 gets its name from. Different MT chips have different architectures. An MT6753 chip's boot partition will be in SYS8. After you've deleted all the sections following our 8163's SYS10, save the modded file with another name, like MT8163_Android_scatteredmoddedBOOTONLY.txt.
To root your Excello Tab, run the SP Flash Tool as administrator. Change the scatter file to the one you just modified. Choose the Download tab. The scatter file should only give you the boot partition as a familiar target. Check that partition, and select the magisk_patched.img. Power down your Excelo. Press the Download action on the SP Flash Tool. Hold the Excello's Volume Down button and connect the Excello to your PC running the SP Flash Tool. Release the button when the red bar appears on the flash tool. When the flashing completes with a green check mark icon, unplug the Excello. Boot it up, run Magisk Manager and your root checker. You should have a rooted tablet.
At one point, I hard bricked my Excello. It was my fault, but my Excello wouldn't respond to its power button There was an apparent Windows driver problem, as my Excello Tab wasn't recognized by my Windows PC when bricked, so the SP flash tool errored out with an unrecognized device. Luckily, there's a 64 bit Linux version of the SP Flash tool, and the Linux kernel read the MediaTec chip, allowing the Linux version of the SP flash tool to successfully flash the OEM firmware to unbrick the Excello, readback/create the boot.img, and flash the Magisk_patched.img to root the Excello Tab tablet.
If any of these instructions are confusing or contradictory, ask for clarification before you turn your beautiful $130 10" bargain tablet into the most expensive paperweight you ever bought.
i did all the steps up to the readback part it gives me error i try to readback the boot part and that i have done so far to the tablet
exglynco said:
Before you flash your modified boot.img file (magisk_patched.img) to root your Excello, you have to modify your MT8163_Android_scatter.txt file (it's in your firmware folder) to only flash up to and including the boot partition. Load that scatter file in your text editor, and find the partition_name: boot. For the MT8163 chip, it's in the section starting with partition_index: SYS10. As you read about partition_index SYS10, you realize that SYS10 is where ROM_10 gets its name from. Different MT chips have different architectures. An MT6753 chip's boot partition will be in SYS8. After you've deleted all the sections following our 8163's SYS10, save the modded file with another name, like MT8163_Android_scatteredmoddedBOOTONLY.txt.
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Hey man, awesome work here. I am trying this myself but I am having trouble going through the part I quoted above. Can you help clarify this? Thanks in advance!
I'm sorry, guys, for not checking in more often. I dropped my Excello and cracked its screen some time ago.
Anyway, I found my old working directory for my rooting Excello project, and attached a couple of screen captures to show you what the OEM scatter.txt file looks like. I used Ubuntu's gedit to open/edit the file. The old CTRL-F command opened up a search box, which found SYS10 around line 179. Chop the file after the SYS10 section/discussion, after line 192, and save the altered file as discussed. See the second screen capture file.