Hardware Maintenance Manual
Page 3
... Status indicators . . . . . 57 Chapter 6. Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models 67 1010 Battery pack 68 1020 Serial Ultrabay Slim device or travel bezel . . 69 1030 ... Disc Set 47 Passwords 49 Power-on password 49 Hard disk password 49 © Copyright Lenovo 2012 Supervisor password 49 How to remove the power-on password . . . 49 How ... 64 Retaining the UUID 65 Reading or writing the ECA information . . . 65 Chapter 8. Contents About this manual iii Chapter 1. Fn key combinations . . . 61 Chapter 7. General checkout . . . . . 35 ...
... Status indicators . . . . . 57 Chapter 6. Removing and replacing a FRU 67 Before servicing ThinkPad T420s and T420si models 67 1010 Battery pack 68 1020 Serial Ultrabay Slim device or travel bezel . . 69 1030 ... Disc Set 47 Passwords 49 Power-on password 49 Hard disk password 49 © Copyright Lenovo 2012 Supervisor password 49 How to remove the power-on password . . . 49 How ... 64 Retaining the UUID 65 Reading or writing the ECA information . . . 65 Chapter 8. Contents About this manual iii Chapter 1. Fn key combinations . . . 61 Chapter 7. General checkout . . . . . 35 ...
Hardware Maintenance Manual
Page 5
ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176 Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is intended only for the following ThinkPad® products. Use this manual along with the advanced diagnostic tests to...
ThinkPad T420s and T420si Machine types (MT) 4170, 4171, 4172, 4173, 4174, 4175, and 4176 Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.Before servicing a ThinkPad product, be sure to troubleshoot problems. Important: This manual is intended only for the following ThinkPad® products. Use this manual along with the advanced diagnostic tests to...
Hardware Maintenance Manual
Page 74
Some models of the ThinkPad T420s and T420si you are servicing has the SIM card, remove it before you start the servicing. To remove the SIM card, you need to flip-lock ZIF ... Battery pack Important notice for replacing a battery pack: 68 Hardware Maintenance Manual If the computer you insert the card back into the slot firmly. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are connected to remove the battery pack first. (See 1010...
Some models of the ThinkPad T420s and T420si you are servicing has the SIM card, remove it before you start the servicing. To remove the SIM card, you need to flip-lock ZIF ... Battery pack Important notice for replacing a battery pack: 68 Hardware Maintenance Manual If the computer you insert the card back into the slot firmly. Notice on disconnecting the cable from the flip-lock ZIF connector, do as shown in ThinkPad T420s and T420si models are connected to remove the battery pack first. (See 1010...
(Brazilan Portuguese) User Guide
Page 246
... reasonable protection against harmful interference in accordance with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Aviso de restrição da exportaçã... de la classe B est conforme à la norme NMB-003 du Canada. 228 Manual de Utilizador If this device must accept any radio or television interference caused by using other...245;es sobre emissões electrónicas As informações seguintes referem-se ao ThinkPad T420s/T420si, tipos de máquina 4175, 4176, 4171, 4173, 4174, 4170, 4172. Declaraç...
... reasonable protection against harmful interference in accordance with Part 15 of the FCC Rules. Responsible Party: Lenovo (United States) Incorporated 1009 Think Place - Aviso de restrição da exportaçã... de la classe B est conforme à la norme NMB-003 du Canada. 228 Manual de Utilizador If this device must accept any radio or television interference caused by using other...245;es sobre emissões electrónicas As informações seguintes referem-se ao ThinkPad T420s/T420si, tipos de máquina 4175, 4176, 4171, 4173, 4174, 4170, 4172. Declaraç...