Lenovo Flex 5 User Guide

							17
Important service information
Use the following strategy to prevent unnecessary expense for replacing and 
servicing FRUs:
• If you are instructed to replace an FRU, but the replacement does not solve 
the problem, reinstall the original FRU before you continue.
• Some computers have both a processor board and a system board. If you 
are instructed to replace either of them, and replacing one of them does not 
solve the problem, reinstall that board, and then replace the other one.\
 
• If an adapter or a device consists of more than one FRU, any of the FRUs 
may be the cause of the error. Before replacing the adapter or device, 
remove the FRUs one by one to see if the symptoms change. Replace only 
the FRU that changed the symptoms. 
Attention:  The setup configuration on the computer you are servicing may 
have been customized. Running Automatic Configuration may alter the 
settings.  Note  the  current  configuration  settings  (using  the  View  Configuration 
option); then, when service has been completed, verify that those setti\
ngs 
remain in effect.
Strategy for replacing a hard disk drive
Always try to run a low-level format before replacing a hard disk drive.\
 This 
will cause all customer data on the hard disk to be lost. Make sure that the 
customer has a current backup of the data before performing this action.\
Attention: The drive startup sequence in the computer you are servicing may 
have been changed. Be extremely careful during write operations such as 
copying, saving, or formatting. If you select an incorrect drive, data or programs 
can be overwritten.
Important notice for replacing a system board 
Some components mounted on a system board are very sensitive. Improper 
handling can cause damage to those components, and may cause a system 
malfunction.
Attention: When handling a system board:
• Do not drop the system board or apply any excessive force to it.
• Avoid rough handling of any kind.
• Avoid bending the system board and hard pushing to prevent cracking at 
each BGA (Ball Grid Array) chipset. 
						

							18
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in Electrical and 
Electronic Equipment Directive (2002/95/EC) is a European Union legal 
requirement affecting the global electronics industry. RoHS requirements 
must be implemented on Lenovo products placed on the market after 
June 2006. Products on the market before June 2006 are not required to 
have RoHS compliant parts. If the original FRU parts are non-compliant, 
replacement parts can also be non-compliant. In all cases if the original 
FRU parts are RoHS compliant, the replacement part must also be RoHS 
compliant.
Note:  RoHS  and  non-RoHS  FRU  part  numbers  with  the  same  fit  and  function 
are identified with unique FRU part numbers.
Lenovo plans to transit to RoHS compliance well before the implementatio\
n 
date and expects its suppliers to be ready to support Lenovo’s requirements 
and schedule in the EU. Products sold in 2005 and 2006 will contain some 
RoHS compliant FRUs. The following statement pertains to these products and 
any product Lenovo produces containing RoHS compliant FRUs.
RoHS compliant FRUs have unique FRU part numbers. Before or after the 
RoHS implementation date, failed RoHS compliant parts must always be 
replaced  with  RoHS  compliant  ones,  so  only  the  FRUs  identified  as  compliant 
in the system HMM or direct substitutions for those FRUs may be used. 
Products marketed before June 2006 Products marketed after June 2006 
Current or 
original part  Replacement FRU 
Current or 
original part Replacement FRU
Non-RoHS Can be Non-RoHS
Must be RoHSMust be RoHS
Non-RoHS
Can be RoHS
Non-RoHS Can sub to RoHS
RoHS Must be RoHS
Note: A direct substitution is a part with a different FRU part number that is 
automatically shipped by the distribution center at the time of the orde\
r. 
						

							19
General checkout 
General checkout 
This chapter presents the following information:
• “What to do first” on page 20
• “Power system checkout” on page 21
Before you go to the checkout, make sure to read the following important\
 notes:
Important notes:
•	 Only	certified	trained	personnel	can	service	the	computer.
•	 Before
	replacing	any	FRU,	read	the	entire	page	on	removing	and	replacing	FRUs.
•	 Car

efully
	r
 emove
	scr
 ews
	for	r
 euse
	when	r
 eplacing
	FRUs.
•

	 Be
	ex
 tremely
	ca
 reful
	duri
 ng
	such	wri
 te
	ope
 rations
	as	co
 pying,
	sav
 ing,
	or	formatting.	Drives	in	the	computer	that	you	are	servicing	sequence	might	have	bee

n
	al
 tered.
	If	you	selec
 t
	an	inc
 orrect
	drive
 ,
	dat
 a
	or	program
 s
	mi
 ght
	be	overwritten.
•	

Replace
	an	FRU	only	with	another	FRU	of	the	cor
 rect
	model
 .
	Whe
 n
	you	replace	an	FRU,	make	sure	that	the	machine	model	and	the	FRU	part	number	are	correct	by	referring	to	the	FRU	parts	list.	
•	

An
	FRU	should	not	be	replaced	just	because	of	a	single,	unrepr
 oducible
	failure.	Single	failures	can	occur	for	a	variety	of	reasons	that	have	nothing	to	do	with	a	hardware	defect,	such	as	cosmic	radiation,	electrostatic	discharge,	or	software	errors.	Consider	replacing	an	FRU	only	when	a	problem	recurs.	If	you	suspect	that	an	FRU	is	de

fective,
	cl
 ear
	th
 e
	err
 or
	lo
 gs
	an
 d
	ru
 n
	th
 e
	te
 st
	aga
 in.
	If	th
 e
	err
 or
	do
 es
	not	recur

,
	do	not	replace	the	FRU.	
•	 Be	car

eful
	not	to	r
 eplace
	a	nondefective	FRU. 
						

							20
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
What to do first
When you do return an FRU, you must include the following information in the 
parts exchange form or parts return form that you attach to it:
1. Name and phone number of servicer
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Procedure index and page number in which the failing FRU was detected 
6. Failing FRU name and part number
7. Machine type, model number, and serial number
8. Customer’s name and address
Note for warranty:  During the warranty period, the customer may be 
responsible for repair costs if the computer damage was caused by misuse\
, 
accident, modification, unsuitable physical or operating environment, or 
improper maintenance by the customer.
The following is a list of some common items that are not covered under 
warranty and some symptoms that might indicate that the system was 
subjected to stress beyond normal use.
Before checking problems with the computer, determine whether the damage is 
covered under the warranty by referring to the following list:
The following are not covered under warranty: 
• LCD panel cracked from the application of excessive force or from being 
dropped
• Scratched (cosmetic) parts
• Distortion, deformation, or discoloration of the cosmetic parts
• Plastic parts, latches, pins, or connectors that have been cracked or broken 
by excessive force
• Damage caused by liquid spilled into the system
• Damage caused by the improper insertion of a PC Card or the installation of 
an incompatible card
• Improper disk insertion or use of an optical drive 
• Diskette drive damage caused by pressure on the diskette drive cover, 
foreign material in the drive, or the insertion of a diskette with multi\
ple labels 
• Damaged or bent diskette eject button
• Fuses blown by attachment of a nonsupported device
• Forgotten computer password (making the computer unusable)
• Sticky keys caused by spilling a liquid onto the keyboard
• Use of an incorrect AC adapter on laptop products
The following symptoms might indicate damage caused by nonwarranted 
activities: 
• Missing parts might be a symptom of unauthorized service or modification. 
• If the spindle of a hard disk drive becomes noisy, it may have been subjected 
to excessive force, or dropped. 
						

							21
General checkout 
Power system checkout
To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Connect the AC adapter.
3. Make sure that power is supplied when you turn on the computer.
4. Turn off the computer.
5. Disconnect the AC adapter.
6. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate power supply checkou\
t:
• “Checking the AC adapter” on page 21
• “Checking operational charging ” on page 22
Checking the AC adapter 
You are here because the computer fails only when the AC adapter is used. 
• If the power-on indicator does not turn on, check the power cord of the AC 
adapter for correct continuity and installation.
• If the computer does not charge during operation, go to  “Checking 
operational charging ”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the  following figure:
1
2
Voltage (V DC)
+200
Pin
1
2
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you 
are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following: 
• Replace the system board.
• If the problem persists, go to “Lenovo ideapad FLEX 5-1470/Lenovo ideapad 
FLEX 5-1570 ” on page 26.
Note: Noise from the AC adapter does not always indicate a defect. 
						

							22
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Checking operational charging
To check whether the battery charges properly during operation, use a 
discharged battery pack or a battery pack that has less than 50% of the total 
power remaining when installed in the computer. 
Perform operational charging. If the battery status indicator or icon is\
 not lit, 
remove the battery pack and let it return to room temperature. Reinstall\
 the 
battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less th\
an 95%
of the total power remains; under this condition the battery pack can ch\
arge to
100% of its capacity. This protects the battery pack from being overcharged or
from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon
tray of the Windows® taskbar and wait for a moment (but do not click it), and 
the
percentage of battery power remaining is displayed. To get detailed information
about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged.
Remove it from the computer and leave it at room temperature for a while\
. After
it cools down, reinstall and recharge it. 
						

							23
Related service information
Related service information
This chapter presents the following information:
• “Restoring the factory contents by using OneKey Recovery” on page 23
• “Passwords” on page 24
• “Power management ” on page 25
Restoring the factory contents by using OneKey Recovery
Restore of factory default
The Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 computer 
comes with pre-installed OneKey Recovery System.In order to save application 
files and the initial backed up files of the system, the hard disk in a \
Lenovo 
computer includes a hidden partition when it is shipped. If you need to restore 
the  system  to  the  point  of  your  first  boot  up,  just  enter  the  Recovery  System. 
For details of the Recovery system, see  the User Guide for Recovery system.
Note:	This	will	delete	all	the	new	data	on	the	system	partition	(C	drive),	which	is	not	recoverable.	Make	sure	to	back	up	your	critical	data	before	you	perform	this	action. 
						

							24
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Passwords
As many as three passwords may be needed for any Lenovo computer: the 
power-on password (POP), the hard disk password (HDP), and the supervisor 
password.
If any of these passwords has been set, a prompt for it appears on the screen 
whenever the computer is turned on. The computer does not start until the 
password is entered.
Power-on password
A power-on password (POP) protects the system from being powered on by 
an unauthorized person. The password must be entered before an operating 
system can be booted.
Hard-disk password
There are two hard-disk passwords (HDPs):
+ User HDP - for the user
+ Master HDP - for the system administrator, who can use it to get access to 
the hard disk drive even if the user has changed the user HDP
Attention: If the user HDP has been forgotten, check whether a master HDP 
has been set. If it has, it can be used for access to the hard disk drive. If 
no master HDP is available, neither Lenovo nor Lenov authorized service 
technicians provide any services to reset either the user or the master HDP, or 
to recover data from the hard disk drive. The hard disk drive can be replaced 
for a scheduled fee.
Supervisor password
A supervisor password protects the system information stored in the BIOS.\
 The 
user must enter the supervisor password to get access to the BIOS and change 
the system configuration.
Attention: If you forget the password, there is no service procedure to reset 
the password. The system board must be replaced for a scheduled fee.  
						

							25
Related service information
Power management
Note: Power management modes are not supported for an APM operating 
system.
Putting the computer to sleep or shutting it down
When you have finished working with your computer, you can put it to sleep or 
shut it down.
Putting your computer to sleep
If you will be away from your computer for only a short time, put the co\
mputer to 
sleep. When the computer is in sleep mode, you can quickly wake it to resume 
use, bypassing the startup process. 
To put the computer to sleep, do one of the following:
• Close the display lid.
• Press the Power button.
• Open the start menu, and then select Power  → Sleep.
Attention:  Wait until the power indicator light starts blinking (indicating that 
the computer is in sleep mode) before you move your computer. Moving your 
computer while the hard disk is spinning can damage the hard disk, causi\
ng 
loss of data.
To wake the computer, do one of the following:
• Press any key on the keyboard. (Notebook mode only)
• Press the Power button.
Shutting down the computer
If you are not going to use your computer for a long time, shut it down.\
To shut down your computer, do one of the following:
• Open the start menu, and then select Power  →  Shut down
.
• Press and hold or right-click the  Start button in the lower-left corner and 
select Shut down or sign out  
→  Shut down
. 
						

							26
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570 
Hardware Maintenance Manual
Lenovo ideapad FLEX 5-1470/Lenovo ideapad FLEX 5-1570
This chapter presents the following product-specific service references and 
product-specific parts information:
• “Specifications” on page 26
• “Status indicators ” on page 27
• “Keyboard function keys ” on page 28
• “FRU replacement notices ” on page 29
• “Removing and replacing an FRU ” on page 30
• “Locations” on page 62
• “Parts list” on page 65
Specifications
The following table lists the specifications of the Lenovo ideapad FLEX 
5-1470/Lenovo ideapad FLEX 5-1570:
Table 1. Specifications
Feature Description
Processor View the system properties of your computer.
You can do this as follows: Open the  Control Panel, and then select 
System and Security  → System.
Graphic Chipset 
Display
• 14.0-inch, 16:9, 1,366 × 768 pixels HD / 1,920 × 1,080 pixels FHD (Lenovo ideapad FLEX 5-1470)• 15.6-inch, 16:9, 1,920 × 1,080 pixels FHD /  3,840 × 2,160 
pixels UHD (Lenovo ideapad FLEX 5-1570)
Standard 
memory
• DDR4, SODIMM × 1 (max 16 GB)
SSD• 128 GB / 256 GB / 512 GB / Optane memory 16 GB, PCIE M.2I/O port  USB 3.0 × 2
Combo audio jack × 1
HDMI port × 1
Type-C × 1 (USB 3.0)  
Memory card slot (SD/SDHC/SDXC/MMC)
Audio
• 1/8" Combo audio jack• JBL Branded Speaker• Built-in microphone × 2Bluetooth 
wireless • Built-in antenna with wireless card module for all Models
Keyboard• 6 Row, Lenovo Keyboard, Back-lightTouch pad • Multi-touch typeIntegrated 
camera• 720P HD
Battery• 2 cells / 3 cells, 35 Wh / 52.5 Wh (Lenovo ideapad FLEX 5-1470)• 3 cells, 52.5 Wh (Lenovo ideapad FLEX 5-1570)
AC adapter• 20 V DC, 45 W / 65 W (Lenovo ideapad FLEX 5-1470)• 20 V DC, 65 W (Lenovo ideapad FLEX 5-1570)Pre-installed 
operating 
system • Win10