Master code for t20 - Cherry Electrical T20 Mobile

Error Codes > Riso > SF5350 > Code C02 253

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Code: C02 253 · Description: The master for the master roll has run out (or is running out). · Causes: No-master error has occurred five times on the same master ...

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Riso MZ790 error C02-253 Replace Master Roll ~

Copytechnet https://www.copytechnet.com > ... > Digital Duplicators
Dec 30, 2017 - Re: Riso MZ790 error C02-253 Replace Master Roll ~ Hold yellow reset while turning machine on, update firmware, check wire harnesses, etc...

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Get the ZTE unlock code as below
Unlock Your ZTE T20 go the direct link below and select your country and network
Unlock ZTE T20 How to Unlock ZTE T20
make all process done. code will be delivered you by mail

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codes is 12345 or 00000 u can use it
Default 4 Digit user code: 1234 or 0000
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Hi, During the boot at the THINKPAD SCREEN press the Thinkvantage key ( Blue button ) it will launch rescue and recovery and allow you to reboot factory. This only works if you did not corrupted/deleted the rescue and recovery hidden partition on the HDD. Otherwise you will need the rescue and recovery CD to proceed. IBM/Lenovo support should be able to provide you the CD. Might be a defective hdd aswell, in this case to make sure you can run a DFT test, www.google.com -> Look up for " Test DFT " ( Drive fitness tool from hitachi, will make an hardware diag if hdd failure - error code 0x00 = everything fine, other code = Issue - You can look up for accurate code explanation on hitachi website ) thanks and have a nice day J-

Phil, I have had the same problem today.
did you solved the problem already?

There is no such thing as a BIOS master code, just access your CMOS battery, remove it for a few minutes and place it back, that should be able to reset your BIOS...

The Innaccessable Boot Device message means one of 2 things:

1: your hard drive has died - not much here, must replace drive.

2: The master boot record has become corrupt. Without any media, this will be hard to fix. You will need to boot to the Windows CD and either run the recovery console or perform a windows repair to fix this issue.

Check the paper ejection unit that is a T20 code T02 code would be a standard tray lift issue.414 is not listed in the book for eather code

Could be a problem with the MBR or Master Boot Record.
It could be damaged. It's only a file system type problem not a hardware fault.
Have a look here.
http://www.ambience.sk/fdisk-master-boot-record-windows-linux-lilo-fixmbr.php