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How to use SN Write Tool (SN Writer)





Text format @ https://forum.hovatek.com/thread-12306.html
This video explain how to use SN Write tool to write IMEI, Bluetooth, MAC/WiFi, Barcode address etc

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00:22
In this video tutorial, I’ll be explaining how to use SN Write tool also known as SN Writer

00:30
In previous guides, I’d explained how to fix Null IMEI and WiFi 0x10 NVRAM errors

00:38
using either MTK Engineering or WiFi.exe manual editing and creation

00:44
but the limitation of those methods is that once you do a factory reset, they revert to previous state

00:54
in the sense that if you write IMEI to your phone using the MTK Engineering method and you do a factory reset

01:00
its very possible your IMEI disappears so you’re back to null IMEI but if you’re having the 0x10 NVRAM error

01:09
before the fix, once you do a factory reset, you’re back to that error. So they’re temporary fixes.

01:16
Its not like they’re not effective but they just disappear once you do a factory reset.

01:22
Now, the advantage of using SN Write tool is that you have a permanent fix in the sense that even if you

01:28
do a factory reset, your IMEI still remains and your WiFi / MAC address, 0x10 is gone for good

01:38
even if you do a factory reset. That is one advantage you have when you use SN Write tool or SN Writer

01:44
Now, the downside is that you need to have the MD1DB & APDB files for the phone you’re trying to fix

01:59
and these files are located in the firmware for that phone so unless you have a firmware with those two files in them

02:07
you will not be able to use SN Write tool. So you’ll need those two files for SN Write tool

02:15
that is why I said its kind of a downside but with the other methods, you do not need any file

02:19
just the phone and you’re good to go. Before you can use SN write tool, you need to have your drivers installed

02:28
so i’ll be showing you how to install drivers for Feature phones and Mediatek Android (smart) phones.

02:35
Ideally, I should not be taking you through this guide of installing drivers but just to give you a start to finish

02:42
approach, I will just take a few minutes out to put you through that. Alright! So for Feature phones,

02:50
what you have to do is download the drivers. You can check the SN Write tool guide at the Forum. You’ll

02:56
find the link to download these drivers. You just open the folder and double-click InstallDriver

03:06
Now, for the MTK USB VCOM drivers, you need to disable driver signature verification

03:17
if you’re using a Windows 8 or 10 PC. We already dropped a guide at the Forum and you can check our

03:24
YouTube channel for the guide on how to disable signature verification on a Windows 8 or 10 PC

03:31
so you do not encounter any error during the Mediatek VCOM driver installation. If you’re using a Windows 7 PC

03:41
you do not need to do that. Its disabled by default. There’s no setting that will block your driver installation

03:50
by default on a Windows 7 PC but for Windows 8 and 10, you need to disable that.

03:56
Now, the reason is that this Mediatek USB VCOM driver you’re looking at is an unsigned driver.

04:01
Windows 8 and 10 tend to block the installation of unsigned drivers unless you disable that check

04:09
you understand? So that’s what you’re trying to do on a Windows 8 and 10 PC.

04:13
Alright! So I’ll get down to the installation of Mediatek USB VCOM drivers

04:17
and you’ll want to open Device Manager. For that you tap the Windows button and type device manager

04:26
Alright! Once in device manager, what you’ll want to do is to select any item on the list

04:34
then you click on Action – Add legacy hardware – Next – Install the hardware that I manually select from a list –

04:44
Next – Next – click on Have Disk. Now, you click on the Browse button and navigate to the location of the USB

04:59
VCOM drivers. You open Mediatek USB VCOM drivers – Drivers – USB VCOM Driver

05:08
Now, if you’re using a Windows 7, 8 or 10 PC, you select the Win7 folder but for Vista & XP, select the ones above.

05:21
This would work for Windows 7,8 & 10 so you just open that. Now, you need to select the right one for your

05:30
PC’s architecture. If you’re using a 32 bit PC, you’ll want to select this. If you’re using 64 bit, select this.

05:38
Now, to check which your PC is, you right-click on Computer – Properties. Mine is a 64 bit PC so

05:53
I’ll go ahead and select the 64 bit version and click on Open and click on OK.

05:59
As you can see, this driver is not digitally signed. Click on Next – Next and wait for installation to begin.


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