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TCL 408 Service Manual

TCL 408
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Service Manual TCL Communication Technology Holdings Ltd.
Rev.: 1.0
TCL 408_T507D1_Service Manual V1.0
Page: 14/30
Confidential and proprietary information contained in this repair guide is subject to change without notice.
Distribution, transfer, copy of any content or data in this document without the written permission of TCL is strictly prohibited.
c) Verify whether there are any third-party power management software apps downloaded. If so,
please uninstall these.
d) Please don’t use the device for a long time while it is charging.
e) Try to reset or update your device.
7.4 What should I do if my device’s battery drains under normal use?
a) Check if the device is in a high or low temperature environment. If yes, we advise you to use it
only under normal operating conditions.
b) Deactivate Bluetooth, Wi-Fi, or GPS when not in use.
c) The battery drains quickly when playing games and watching videos. This is normal when
running large games for a long time or watching videos.
d) Too many apps running in the background or the system cache not being cleared may cause
battery draining. Touch the Menu key in the bottom corner of the screen to view recently used
applications. Touch “Clear all” to close the apps.
e) Try to reset or update your device.
7.5 What should I do if my device auto powers off?
a) Power off your device and charge the device with a TCL official charger for at least 30 minutes,
then try to power on again.
b) If the issue occurs while using a third-party app, make sure the app is compatible with your
device and Android version. Try uninstalling the third-party app.
c) Try to reset or update your device.
7.6 What can I do if my device heats up?
A warning or sensation of heat in the device is the normal consequence of the CPU handling
excessive data, which makes the battery warm. It is not harmful to the battery or device even if the
device feels hot.
Use the following actions to make your device return to its normal temperature:
a) It is suggested not to expose your phone in sunshine for a long period of time;

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TCL 408 Specifications

General IconGeneral
Color nameMidnight Blue
Form factorBar
Product colorBlue
Screen shapeFlat
Pixel density269 ppi
Display diagonal6.6 \
Display brightness400 cd/m²
Display resolution720 x 1612 pixels
Native aspect ratio20:9
Contrast ratio (typical)1000:1
Processor modelMT6762
Processor familyMediaTek
Processor frequency1.5 GHz
Processor boost frequency2 GHz
RAM capacity4 GB
Compatible memory cardsMicroSD (TransFlash)
Maximum memory card size512 GB
Internal storage capacity64 GB
Rear camera typeDual camera
Front camera typeSingle camera
Rear camera flashYes
Maximum frame rate30 fps
Rear camera pixel size0.7 µm
Front camera pixel size1.12 µm
Rear camera sensor size1/2.55 \
Rear camera lens elements3-element lens
Rear camera aperture number1.8
Front camera aperture number2
Second rear camera pixel size1.75 µm
Second rear camera sensor size1/5 \
Video capture resolution (max)1920 x 1080 pixels
Rear camera resolution (numeric)50 MP
Second rear camera lens elements5-element lens
Front camera resolution (numeric)8 MP
Second rear camera aperture number2.4
Rear camera field of view (FOV) angle79.4 °
Front camera field of view (FOV) angle77.5 °
Second rear camera resolution (numeric)2 MP
Second rear camera field of view (FOV) angle88.8 °
4G standard-
3G standardsHSPA+
SIM card typeNanoSIM
Wi-Fi standards802.11a, 802.11g, Wi-Fi 5 (802.11ac), 802.11b, Wi-Fi 4 (802.11n)
Bluetooth version5.1
SIM card capabilityDual SIM
Mobile network generation4G
Subscription typeNo subscription
USB version2.0
USB connector typeUSB Type-C
Headphone connectivity3.5 mm
Talk time (3G)- h
Battery capacity5000 mAh
PlatformAndroid
Operating system installedAndroid 12
Audio formats supportedMP3, AAC, AWB, Vorbis, WAV, HE-AAC, HE-AAC v2, OGG, OPUS, FLAC, MIDI, AMR
Video formats supportedVP8, H.264, VP9, MPEG2, H.265, MPEG4, H.263
Repairability index8
Weight and Dimensions IconWeight and Dimensions
Depth8.99 mm
Width75.4 mm
Height164.66 mm
Weight190 g

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