Cannot unlock 5200 rm-174

[Panthereitor]

hello.

I have this nokia 5200 rm-174 V. 5.51

When I do SPUnlock always show me:


" '$&0' is not a valid integer value. "


and here is log:

JAFbox Opened..
Please wait.. Rebooting phone
================== READING PHONE INFORMATION ========================
MCU SW version : V 05.51
05-09-07
RM-174
(c) Nokia.
IMEI : 354159022456780
CONFIG KEY: 8000000000000000
PROVIDER KEY: 7300300036615151
Provider : Unknown Provider
Counters : 0/3 , 0/10
SP Lock Status : Locked
================== AUTO Backup PM-308 ========================
MCU SW version : V 05.51
05-09-07
RM-174
(c) Nokia.
IMEI : 354159022456780
Reading PM 308
PM 308 Size : 8192
PM 308 save to E:\MOBILE PHONES 2\J.A.F. Just Another Flasher\bb5\backup\354159022456780_054417.pm
PM 308 reading done.
================== 1st Boot ========================
RAPx ID : 000000010000022600010006010C192101001101
EM ID 1 : 00000232
EM ID 2 : 00000353
RAPx PubID : 18D002106EBF6F56408FE52F93966C7D48EAAD1A
RAPx HASH : BAF3A9C3DBFA8454937DB77F2B8852B1
RAPx ROM ID: 191EC665DFAAF68F
Boot OK
Auto Selected rap3gv3
================== 2nd Boot ========================
Write PATCH 1 ..
- Phone-ACK 0x550200003D3D
Server verification..
Write PATCH 2 ..
PKEY Verified OK..
- Phone-ACK 0x550200E402E6
Write PATCH 3 ..
- Phone-ACK 0x550200483971
>>> phone reply : HELLO U
>> : ok


" '$&0' is not a valid integer value. "

[Panthereitor]

Is nesesary downgrade the phoneif it is V. 5.53?? or is already supported??


Please help

[venuno]

i think cable problem check and clean
contact of pcb

V 05.51

is lower than

5.53