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L1 Service Manual
2.7.
Cell phone maintenance
1)
Equipments for handset test.
One SIM card.
2)
It is recommended the following tools:
One PC with Windows 2000/NT/XP/Windows 7.
One USB cable.
One charger.
2.8.
Invoice check
Check warranty status of Handset by POP (Proof of Purchase)
If the end user lost his POP, then consider the data code as the purchasing day. Date code: (HER)
Note:
Coding
Day
1
2
...
9
A
B
...
U
V
Rev.
1.1
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Day
Coding
Month
st
1
E
nd
2
F
...
G
th
...
9
th
10
O
th
11
P
...
th
30
st
31
ALCATEL ONE TOUCH 7053 Level 1 Service Manual
TCT
Month
Coding
Year
January
O
February
P
March
Q
...
...
November
Y
December
Z
Mobile Limited
Coding Month
Coding Year
Coding day
Year
2005
2006
2007
...
2015
2016
Page
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