Mercedes keyless go NEC read write tool, which one

There are several solutions to this problem. but incomplete solution!!!!!!!.
1: From MBE group. this just soft update : NEC PRO 57 KEY Programmer v. 11
Need buy necprog price: 2400 – 3000 EUR.

nec_pro_57
This software can read ezs for data key, and read password from key ( ver. 51 or ver. 57)
So if loss keys this soft cannot do…. and if problem EZS this soft cannot fix it.
(RESULT: THIS SOFT JUST WORK FOR MAKE SPARE KEYS.. NEED KEY WORKED)
THIS LINK: http://www.noimmo.lt/equipment/params/184/

2: From mercedes instument.. this soft have 3 version..
1: soft for work read dump key. with keys ver 57
Price: €2 700.00
This link:
http://mercedesinstrument.com/catalog/#!/~/product/category=3040229&id=32479083
2: soft for read abd write for ezs data but need password from key. and this can renew esl if know password
Price: €3 000.00
This link:
http://mercedesinstrument.com/catalog/#!/~/product/category=3040229&id=32479130 –
3: this soft can do for keyless-go function.
Price: €1 350.00
(RESULT: THIS SOFT CAN REPAIR EZS AND ESL MUST HAVE WORKED KEY)

3: soft NEC_PRO 57 I think this soft from
http://www.obdii365.com/wholesale/original-m-ercedes-b-enz-nec-pro57.html (original quality same as that from ezs24.de)
This show on youtube
02 NEC PRO57 Support ESL 204 Programing – YouTube
01 NEC PRO57 Read new EIS 221,164,216 New Model – YouTube
This soft will work need worked key… for get password; also they have solution if loss all key… need change new ezs ..
Read data (hash) key from old ezs and write to new ezs… no need password for do if ezs is new.
price: $14,249.00 ($751 cheaper than that from ezs24.de)
(RESULT: THIS SOFT CAN REPAIR EZS AND EZS MUST NEED HAVE WORKED KEY)

I THINK THAT SOFT CAN DO FOR EZS NEWER VERSION WITH NEC INSIDE…. BUT ALL SOFT NOT WORK ON CASE LOSS OF KEY.

YOU CAN CHOOSE, WHERE THE BEST

ANYONE HAVE MORE INFO ABOUT SOLUTION FOR NEW EZS, POST HERE

Finally, I have order one of the three programmer..
NECPRO57 from obdii365.com (original key from ezs24.com)
mercedesinstrument
Key less prog from mehaco
Base software is same…. that soft have solution for renew ezs and esl need password from key v57.
nec keyprog ver 11
IR key programmer & IR service key from efficip
this soft same base software… just do spare key, need password from key v57.

OBD365‘s  conclusion…
There are only two types of software to perform new EZS type..
1, software can read ezs by IR and CAN BUS ( socket or obd) and then this software can renew ezs and esl by can bus, use password for reset..
2, software can read ezs by IR and and calc key. so this soft can not repair ezs or esl
Most sellers only modify.

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