Lenovo ThinkPad T420si Hardware Maintenance Manual - Page 74

Battery pack - thinkpad t420s and t420

Get Lenovo ThinkPad T420si PDF manuals and user guides View all Lenovo ThinkPad T420si manuals
Add to My Manuals
Save this manual to your list of manuals

Page 74 highlights

Some models of the ThinkPad T420s and T420si you are servicing might have the SIM card that the customer has installed. If the computer you are servicing has the SIM card, remove it before you start the servicing. To remove the SIM card, you need to remove the battery pack first. (See 1010 Battery pack.) After you finish the servicing, make sure that you insert the card back into the slot firmly. Notice on disconnecting the cable from flip-lock ZIF connector: Some cables used in ThinkPad T420s and T420si models are connected to flip-lock ZIF connectors. When disconnecting a cable from the flip-lock ZIF connector, do as shown in this figure. 1 2 1010 Battery pack Important notice for replacing a battery pack: 68 Hardware Maintenance Manual

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
Some models of the ThinkPad T420s and T420si you are servicing might have the SIM card that the
customer has installed.
If the computer you are servicing has the SIM card, remove it before you start the servicing.
To remove the SIM card, you need to remove the battery pack first. (See 1010 Battery pack.)
After you finish the servicing, make sure that you insert the card back into the slot firmly.
Notice on disconnecting the cable from flip-lock ZIF connector:
Some cables used in ThinkPad T420s and T420si models are connected to flip-lock ZIF connectors.
When disconnecting a cable from the flip-lock ZIF connector, do as shown in this figure.
1
2
1010 Battery pack
Important notice for replacing a battery pack:
68
Hardware Maintenance Manual