How to Fixing Lenovo S850 no Service Issued, 100% Work

167

How to Fix Lenovo S850 no Service Issue with Flash_Tool- 100% Working

How to Fixing Lenovo S850 no Service Issued, 100% Working  – Got this posting from the comments one of blog reader, a lot of people got these problems when modified Lenovo S850. Besides Lenovo S850 when you got invalid IMEI and no service issued on your device, you can fix it by restoring the IMEI and it will fix the problems other than Lenovo S850.
I don’t know this guide can be used for non-China devices or just Lenovo S850 so if you try to another please give some word on a comment.
No service is caused by NV file corrupt, so using the flash tool reinstall the NV file and then flash it back to our device, if you do right this procedure than it will revive your device from dead. Please read carefully step by step because it is a very complicated process.

Disclaimer :
This guide for educational purposes only, We not responsible if your device bricked after following this tutorial. (DWYOR)

How to Fixing Lenovo S850 no Service Issued, 100% Work

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 used for another device.
How to Fixing Lenovo S850 no Service Issued, 100% Work
    1. Download all files and place them in the same folder, so you can easy to search the needed files. Extract both files and then go to the flash tool extracted folder, run flash_tool.exe on your windows 7 or Windows 10 PC. Remember to use the administrator account to run flash_tool.exe
    2. After you open flash tool windows, now press ALT + CTRL + V. This will make the Flash tool run on Advanced Mode, you can see on the flash tool windows bar. On the Download tab click Scatter-Loading button and navigate to the folder where you extracted the ROM, 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
      How to Fixing Lenovo S850 no Service Issued, 100% Work

 

    1. Open scatter file that you find on the extracted ROM, using word pad or notepad. Search for NV word, you will see three addresses on the scatter file linear_start_addr, physical_start_addr, and partition_size. Put the linear_start_add on the Begin Address (Hex) and partition_size on the Container Length (Hex)

      How to Fixing Lenovo S850 no Service Issued, 100% Work

       

    2. Click on Open RAW Data, select the NV_RAM file that already downloaded
      How to Fixing Lenovo S850 no Service Issued, 100% Work

 

  1. Lastly, click Write Memory button, turn off your smartphone. Because Lenovo S850 uses a non-removable battery you must make sure that your device is completely turn off. Once your are sure it is totally switched off, connect your smartphone to your Windows 7/10 PC/laptop 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.
  2. Done, disconnect then try to turn on your device and normal boot. Now you can see that your Lenovo S850 no Service Issue is totally solved and you can now make calls or send messages using your Lenovo S850.

Conclusion:

Congratulations, you have successfully resolved the Lenovo S850 No Service issue. Just make sure you can make phone calls and send/receive messages again. Please leave comments if you found any problem or broken link regarding this guide.

Share.

About Author

"The Internet is the first thing that humanity has built that humanity doesn't understand, the largest experiment in anarchy that we have ever had." Eric Schmidt

Subscribe
Notify of
167 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
Ogi Beng
4 years ago

You must check emmc write not flash! Its important..

androidrookies
4 years ago
Reply to  Ogi Beng

Thank you for your information i will update soon

MCDC CDO
4 years ago
Reply to  Ogi Beng

I tried to flash it but still S217, Is its safe if I check nand flash instead of emmc?

androidrookies
4 years ago
Reply to  Ogi Beng

you should select emmc, if you wanna fix the signal problem.
I dont understand what you mean with "I tried to flash it but still S217"

Glick
4 years ago
Reply to  Ogi Beng

@andy suwito why don't you just put the "check the emmc write" thing as @ogi beng mentioned into your wtiting above ? i followed your instructions perfectly but my phone getting bricked right after i write the nv, dunno why but after read @ogi beng's then everythings getting clear … i checked the "nand flash" insted of emmc (yea since you don't mentioned it earlier @andy suwito).
so .. be more cautious on your writing @andy suwito

androidrookies
4 years ago
Reply to  Ogi Beng

I am already write it alot on comments reply, never have chang to edit the guide because the device already sold, so cannot get the screen capture

MCDC CDO
4 years ago

The build number, I successfully flashed it but the build number is still the same before I flashed this fix. Should it be S850_ROW_S215_150114 already?

androidrookies
4 years ago
Reply to  MCDC CDO

no, it not flash the ROM S215,
when you have S217 then it ok use S217, the ROM need because you cannot use this method and flash NV_RAM if you don't have the full stock step 2.
if will only flash of recreate NV_RAM on your device base on S215 MT6582_Android_scatter.txt

MCDC CDO
4 years ago
Reply to  MCDC CDO

Ahh, ok so therefore I successfully flash my phone to recreate the NV_RAM base on S215. So this is solve already sir?

androidrookies
4 years ago

Is your signal is already restore?
What you follow this guide on the first time? Is you have signal issue or you just wanna update your device?

MCDC CDO
4 years ago
Reply to  androidrookies

I just want to try this fix because on our home location, my S850 phone can only get Edge signal since I updated my phone into S217. Hopefully If i get back there later, I can get H+ signal.

androidrookies
4 years ago
Reply to  androidrookies

this not for that problem, this for Lenovo S850 that have no signal at all. Sometime when we flash new ROM nvram partition that store IMEI delete too, so need to recreate again with above method.
if you have signal problem that try this http://bit.ly/1aKQpXq

Muhd syah
4 years ago

hei andy the link maybe dead

androidrookies
4 years ago
Reply to  Muhd syah

Already check the link, all link redirect with bit.ly and adf.ly so please change dns to google if cannot download. All work fine already try

Ky PaMuqHko
4 years ago

I want to ask somethink I'm with build number: S850_ROW_217_150420 and I have network(signal issue) ..Do I have to download S850_ROW_S215_150114 – or I can fix it without downloading it ? (Sorry for my english)

androidrookies
4 years ago
Reply to  Ky PaMuqHko

this guide need source, so if you now running S217 then you need have the source of S217. But if you dont have then need reflash to S215 then download the source to use for this guide.

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

Hi again ..I did everything but when i finally click "write memory" it gives me an error and tells me that 0x180000 is not a valide integer value ?

androidrookies
4 years ago
Reply to  Ky PaMuqHko

the 0x180000 is different for every scatter file, look at your own scatter file.
"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 file linear_start_addr, physical_start_addr and partition_size. Put the linear_start_add on the Begin Address (Hex) and partition_size on the Container Length (Hex)"

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

Okay ..I found it ..I last click write memory and it freezes ..I mean nothing happen.. it stays at 0% and ..nothing ..

androidrookies
4 years ago
Reply to  Ky PaMuqHko

when it still 0% and not moving then you must check your USB VCOM driver," Install this driver first on your computer, Turn off your device and remove the battery, using USB cable connect your device while look at My Computer ↦ Manage ↦ Device Manager there will be MTK65xx Preloader Devices show up for 5 second than disappeared, before disappeared right click on it and select Update Driver Software point it to USB VCOM Driver extracted folder. When it finish disconnect and connect again there will be Mediatek PreLoader USB VCOM Port on your device manager."look at this guide… Read more »

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

my battery is non removal..

androidrookies
4 years ago
Reply to  Ky PaMuqHko

if your battery non removable then just make sure your device is completely turn off.

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

man thanks it doesnt worked but thanks ..i don't want to waste your time anymore..i'll try it again later and see what happens ..thank u so much for this post .. \// peace

androidrookies
4 years ago
Reply to  Ky PaMuqHko

sorry, you cannot download because the 4shared.com close my public sharing. but now it open again.
Ok just leave message if you got problems

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

man i removed my battery I did everything again ..but nothing .. I didn't download the USB VCOM driver..cause as I said ..I removed my battery ..but it just doesn't want to do it ..it stays at 0% and doesn't move

androidrookies
4 years ago
Reply to  Ky PaMuqHko

I dont understand with your think. How can the computer recognize your device if you dont install the usb vcom driver?
When lenovo device is turn off and connect to computer it become mediatek vcom port and it need driver so computer will recognize it. When you not install usb vcom driver the progress will always 0% and computer will not respond when you connect your device

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

using USB cable connect your device while look at My Computer ↦ Manage ↦ Device Manager there will be MTK65xx Preloader Devices show up for 5 second than disappeared, ..man I can''t find this thing

androidrookies
4 years ago
Reply to  Ky PaMuqHko

look at this video and follow https://goo.gl/f9jpwc

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

man in the link that u gave me ..when I download the usb vcom ..and after I extracted it there is no exe file to install it ..can u give another link

androidrookies
4 years ago
Reply to  Ky PaMuqHko

look at video description, there is a bunch of links that you can download. use that link to install the usb vcom and follow the video.

Ky PaMuqHko
4 years ago
Reply to  Ky PaMuqHko

it gives me some type of error ..i give up i cant do it 😀

androidrookies
4 years ago
Reply to  Ky PaMuqHko

ok, thank you for visit the blog

Muhd syah
4 years ago
Reply to  Ky PaMuqHko

well regarding that problem i have the same as @KyPaMuqHkowhere it wont turn on eventhough it charge or try to reflashthe solution i can is to let the phone wont be use for several hour(depend on how many percent left before u start to write memory) and the recharge it, from there it will recharge from 0% then try to full reflash it and viola it still on but the network problem still there the next problem is when i tried to write it again the address change suddenly after click the write button from 0x1800000 to 0x0000001800000, no solution… Read more »

androidrookies
4 years ago
Reply to  Ky PaMuqHko

the point from this guide is to make NVRAM partition again,
and that can be done with scatter file that point on 0x1800000 and 0x500000 on the memory. but this depend on the scatter file

Muhd syah
4 years ago
Reply to  Ky PaMuqHko

1.already done that, writing the nvram, the red bar progress going then it no red bar bar but the progress keep going no nothing like the green circle and my s850 fail to turn on(like hard brick) again, but no worries i got its battery 15% left, gonna let its dried up and tries to do this process with new version of flashtool

2.flash tool saying failed to open raw data that is NVRAM..
im gonna check with latest spflash tool

thnx for replied andy,will be back soon

androidrookies
4 years ago
Reply to  Ky PaMuqHko

I will waiting for the progress, just leave messege if you got any problems

John titus
4 years ago
Reply to  Ky PaMuqHko

https://www.youtube.com/watch?v=x-1yyBgC6Bo

How to solve invalid imei and no service on lenovo s850

androidrookies
4 years ago
Reply to  Ky PaMuqHko

thank you for information

Unknown
4 years ago

NV_RAM link dead gan.

androidrookies
4 years ago
Reply to  Unknown

already check and it alive, it can be download

aion rxian
4 years ago
Reply to  Unknown

Hi, my phone no serial number after flashing vibeui via spflash tools , imei fix done, and the telco name appear, but still no signal. is this tutorial will fix it? and should i use that red number in the tutorial or use no in scatter file? thx for feedback

androidrookies
4 years ago
Reply to  Unknown

I hope it will fix it. But you must try first if you want to know right, nothing to lose.
Use no on your own scatter file, on the guide it just example

tomz-ardhiant
4 years ago

100.1% Worksss
thx bos :cheers

androidrookies
4 years ago
Reply to  tomz-ardhiant

You welcome, thank for visit and leave comment

Mukti Sejatera
4 years ago

thanks gan,, its work.. god bless u

androidrookies
4 years ago
Reply to  Mukti Sejatera

Nice to heard that this guide can help you, thank gor visit and leave comment

Unknown
4 years ago

gan nv_ram link error (Sorry, the file link that you requested is not valid. Sign error.), please reupload/mirror..

thx for help..

androidrookies
4 years ago
Reply to  Unknown

I am already try the link and it work fine. It upload on my 4shared so, if i am not deleted it, rhe file will still on there

Izzat Farhie
4 years ago

Their are such a types of Method mode…
Some, Are Easy, Medium, Tough ..
Just Learn it,Let's do it … always try without compromising… try & error

androidrookies
4 years ago
Reply to  Izzat Farhie

thank you for visit and leave comments, really appreciate it.

musthafa4488
4 years ago

nv data link not work

androidrookies
4 years ago
Reply to  musthafa4488

I am already try the link and it work fine. It upload on my 4shared so, if i am not deleted it, rhe file will still on there

Muhd syah
4 years ago

hi andy im back sorry for very long reply yes i did fix but ur method is actually check emmc if not check i get into hardbrick (solution for hardbrick refer to my other early)
with this fix i have the signal but very very weak

androidrookies
4 years ago
Reply to  Muhd syah

yes maybe it need to check the emmc option. thank you for your correction.
for signal problem i think you should change the modem file, maybe the modem file is not fit with your country provider, and above guide is just to bring back the NVRAM partition

Maria Casso
4 years ago

please i dont speak english, my phone s850 he seguido los pasos de su pagina pero me sale error la direccion de 0x1800000 invalida y no deja otra de todas las que hay en NV_RAM. THANKS.(my phone no signal..)please.please

Hefaca

androidrookies
4 years ago
Reply to  Maria Casso

So sorry i dont understand what your mean i, only know english. So sorry

fancy
4 years ago

andy what cause brom error Enable DRAM failed!.
after flashing my lenovo got brick

androidrookies
4 years ago
Reply to  fancy

give error code or error number,
more description about brick. cannot turn on or still can boot but stuck on lenovo logo or can turn on with red light or etc
describe more

fancy