Service Manual TCL Communication Technology Holdings Ltd. TCL 30 5G T776H_H1 Tech Black Dreamy Blue Warning: All features, functions, specifications, and other product information provided in this document, including but not limited to the advantages, aesthetics, price, components, performance, availability and capacity of the product are subject to change without notice.
Service Manual TCL Communication Technology Holdings Ltd. Content 1 2 3 Precautions..............................................................................................................................................3 General Product Information .................................................................................................................4 Maintenance preparation ...................................................................................................................
Service Manual 1 1) TCL Communication Technology Holdings Ltd. Precautions Use only demagnetized tools specifically designed for small electronic repairs, most electronic parts are sensitive to electromagnetic forces. 2) Use only high quality screwdrivers when repairing products. Poor quality screwdrivers can easily damage the heads of the screws. 3) Always use genuine spare parts. Parts from third party may not function properly or even cause damage.
Service Manual 2 TCL Communication Technology Holdings Ltd. General Product Information Features/Hardware Description Design Dimensions: 164.54*75.24*7.74mm; Weight: 184g System TCL UI 4.0; Android 12 Chipset: MT6833 (MT6833V/NZA); CPU: 2x A76 2.2GHz, 6x A55 2.0GHz; GPU: ARM Processor G57 MC2 4GB RAM + 64GB ROM (for T776H), 4GB RAM +128GB ROM (for T776H1); Support Memory & Storage micro SD cards up to 1TB Display 6.7 inch FHD+U Notch screen 50 MP main camera: PDAF, 1/2.76", 0.64um, F1.
Service Manual 3 TCL Communication Technology Holdings Ltd. Maintenance preparation 3.1 Handset with at least 50% battery charges 3.2 Supported Micro SD card and SIM card, 9V2A Charger, Type-C USB Cable 3.3 PC with below configurations to do software update by using PC tool. CPU: Equal to Pentium 1.6 GHZ or above RAM: 4GB or above Hard Disk: 10GB or above Operation System: Win7/Win8/Win10 USB port Internet connection with minimum internet speed of 8Mb/s 3.
Service Manual 4 TCL Communication Technology Holdings Ltd. Factory Reset Factory reset will reset your phone to restore it to its factory settings. This will delete all data including files and downloaded apps. Please backup the user data before doing factory reset. 4.
Service Manual TCL Communication Technology Holdings Ltd. Click-through steps： 1) Power off the device, long press “Power” Key 2) Press “Volume” key to select “Wipe data/factory + “Volume up” key until the LCD lights on; reset” and press “Power” key to confirm; 3) Select “Factory data reset” and press “Power” 4) Select “Reboot system now” and press “Power” key to confirm; key to confirm. Rev.: 1.0 TCL 30 5G _T776H _H1 Service Manual V1.
Service Manual 5 TCL Communication Technology Holdings Ltd. Software Update It is suggested to upgrade the handset software to latest version for better performance. Before upgrade, please remember to backup your data and keep your phone fully charged. 5.1 Software update by FOTA Firmware-Over-The-Air (“FOTA”) is a way in which the firmware of a mobile device is updated wirelessly by the device’s manufacturer.
Service Manual Rev.: 1.0 TCL Communication Technology Holdings Ltd. TCL 30 5G _T776H _H1 Service Manual V1.0 Page: 9/20 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.
Service Manual TCL Communication Technology Holdings Ltd. 5) Click “OK” and disconnect your phone from USB cable when the tool pops up the prompt “Please disconnect your device from the USB cable to proceed”. 6) Click “Upgrade device” and connect your phone to computer, waiting for upgrade. Rev.: 1.0 TCL 30 5G _T776H _H1 Service Manual V1.0 Page: 10/20 Confidential and proprietary information contained in this repair guide is subject to change without notice.
Service Manual TCL Communication Technology Holdings Ltd. 7) Upgrade successfully. 6 Function Test with Support Centre 1) Check that the Micro SD card are inserted correctly. 2) Power on the product to launch the auto test. 3) If the product displays “input NCK code”, this means the software is Network locked or SIM locked, and can only be used with dedicated SIM card hence use the relevant SIM card or enter the phone NCK code if available.
Service Manual Rev.: 1.0 TCL Communication Technology Holdings Ltd. TCL 30 5G _T776H _H1 Service Manual V1.0 Page: 12/20 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.
Service Manual 7 TCL Communication Technology Holdings Ltd. Troubleshooting 7.1 What should I do if my device reboots by itself? a) If the issue appears occasionally, it may be caused by anomalies in a file. It is recommended that you continue to use the device normally. b) Check if the issue occurs during charging. If yes, we recommend trying the official charger and data cable. c) If the issue occurs while using a third-party app, make sure the app is compatible with your device and Android version.
Service Manual TCL Communication Technology Holdings Ltd. 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 fingerprint unlock function works slowly or fails? a) Pattern, PIN or Password security unlocking is required after the device restarts.
Service Manual TCL Communication Technology Holdings Ltd. device and Android version. Try uninstalling the third-party app. c) Try to reset or update your device. 7.7 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.
Service Manual 9 TCL Communication Technology Holdings Ltd. Explode View Rev.: 1.0 TCL 30 5G _T776H _H1_ Service Manual V1.0 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.
Service Manual Rev.: 1.0 TCL Communication Technology Holdings Ltd. TCL 30 5G _T776H _H1_ Service Manual V1.0 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.
Service Manual 10 TCL Communication Technology Holdings Ltd. Split View Rev.: 1.0 TCL 30 5G _T776H _H1_ Service Manual V1.0 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.
Service Manual Rev.: 1.0 TCL Communication Technology Holdings Ltd. TCL 30 5G _T776H _H1_ Service Manual V1.0 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.
Service Manual TCL Communication Technology Holdings Ltd. -END OF DOCUMENT- Rev.: 1.0 TCL 30 5G _T776H _H1_ Service Manual V1.0 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.
