6303c failed to boot CMT

[zaworek]

All checked Nokia 6303c have errors like below.

Local mode set
MCU Version	V 10.12
MCU Date	08-04-10
Product		RM-443 (Nokia 6303 classic)
Manufacturer	(c) Nokia            
IMEI		xxxxxxxxxxxxxxxx
Mastercode	5133411
PPM		V 10.12, 08-04-10, RM-443, (c) Nokia            , B
CNT		Content: b_matt_black, V 10.12, 08-04-10, RM-443, (c) Nokia            , 
PSN		KPF221153
Product Code	0584428
Module Code	0204282
Basic Product Code	0575069
PSD		0000000000000000
LPSN		0
RETU		15
TAHVO		22
AHNE		30
HW		2002
RFIC		0831
DSP		ICPR81_09w37
LCD		SHARP
BT		410B-v190
Simlock Server	SIMLOCK SERVER
Simlock Key	2600300000000000
Simlock Profile	8000000000000000
Simlock Key Cnt	0
Simlock FBUS Cnt	0
Simlock [1,1]	State: CLOSED	Type: MCC-MNC	Data: 26003F
Auto Selecting Flash Files on User Request...
Product Code: 0584428
This is Valid BB5 Product
Variant found for readen Product Data!
Booting CMT...
Failed to Boot CMT -> CMT Not Responding, Phone or Cable problem
Prepare phone failed with message -> Failed to Boot CMT
Failed to Check BB5 Flashing Bus  -> Failed to Boot / Prepare Phone

As you can see there is a problem with booting the phone.
Cables are efficient and work with other boxes.
Is it an application error?

box firmware

Box Firmware: Cyclone Nokia/Blackberry Application v01.64, (Jun 30 2011 15:31:22, gcc v4.3.3, RTOS V6.0.1), Type: Signed Production Application, (C) KarwosSoft 2011
Hardware Platform: Cyclone Classic Flasher Interface (c) 2008,2009 KarwosLabs
Box Serial Number: C0006052
HW Revision: C, Suitable for: Production, Case: First Plastic Case, MCU Manufacture Time: 2010, wk48

[Mr.3.]

Are you working with tx2 yellow adapter?

[zaworek]

Of course. Other models such as 6700 work properly.

[Mr.3.]

It should be cable fault,

you want to read hash ? If yes try via usb

[zaworek]

Originally Posted by Mr.3.

It should be cable fault,

you want to read hash ? If yes try via usb

I want to downgrade SW.
I checked on several types of cables , UFC UniFBUS V2 also. I can read phone info and pm.

[Mr.3.]

Mbus line must be stable, i tested many 6303 phone with cyclone new update there is nothing wrong,

When you use ufc2 have you plug ground line to battery terminal