Troubleshooting Guide

Fresh

Connection Issues

Device Not Detected

Phone Shows "Offline" in ADB

Cause	Solution
Phone denied access	Re-plug phone, click "Allow" on device
Outdated ADB version	Upgrade ADB
Loose cable	Replace USB cable

Phone Shows "Unauthorized"

Re-plug the phone and tap "Allow" in the authentication popup on the device.

"Get Screen Failed" Error

Cause	Solution
PC program issue	Run TC as administrator
Mobile app startup failed	Close and restart mobile app
Incorrect screen data	Disconnect and restart phone
Missing files	Reinstall TC

"Starting Service" Hangs

• Reconnect the phone
• Restart the phone
• Uninstall TC app from phone, then reconnect

APK Installation Failed

• Enable Install from Unknown Sources on the phone
• Re-plug the phone
• Manually click "Install" if prompted on the device

TCP Connection Issues

Issue	Solution
Connection fails	Verify same LAN, disable firewall
Frequent disconnections	Use 5GHz WiFi, move closer to AP
"Need USB first"	Set USB to charging-only before unplugging
"Agree" not showing	Remove notification confirmation in settings
Drops after screen off	Disable TCP sleep, keep WiFi active in sleep

Display Issues

Black Screen After Connection

Scenario	Solution
Desktop Mode black screen	Change turbo mode (1 to 2 or vice versa)
MDCC black screen	Adjust resolution in phone settings
Partial display	Change resolution from 2K to 1080P
Green border on screen	Switch 1080P to 720P

Screen Display Incomplete

• Settings > Image Quality & Mode > Device Acceleration
• Change "Turbo mode 1" to "Turbo mode 2"
• Adjust phone resolution to highest setting

Physical Buttons Not Showing

Check Auto or Display in Phone Settings > Advanced Settings.

Performance Issues

Slow Frame Rate / Response Delay

1. Click settings icon in device window
2. Find Advanced Settings > PC Acceleration
3. Try different turbo modes
4. Changes require reconnection

Battery Savings

If battery drains quickly, set Device Acceleration to Turbo Mode 1 (lower quality, less power).

ADB Issues

Checking for ADB Conflicts

adb devices

If you see "out of date" or "kill-server" errors:

1. Stop all Android tools (360 Mobile, Samsung tools, etc.)
2. Search system for adb.exe files
3. Keep only TC's version, delete others
4. Restart TC

Error 1019/1033 Recovery

Right-click device > enter shell, then run:

pm uninstall com.sigma_rt.totalcontrol
pm uninstall com.sigma_rt.totalcontrol.test
rm -rf /data/local/tmp/tc/*

Then re-plug the phone.

Brand-Specific Issues

Xiaomi / Redmi

• Enable USB Debug (Security Settings) in Developer Options
• Enable USB Installation for APK install issues
• Set TC to "Unlimited" in Settings > Power and Performance > App Configuration
• MIUI hidden mode blocks data — change TC app configuration

Huawei

• Android 8.0+: Enable "ADB debugging in Charge Only mode" for TCP
• HarmonyOS: Allow app background running in battery settings

Samsung

• Post-Android 7.0: Custom resolution may cause partial display
• Change to 1920x1080 or use Turbo Mode 2

VIVO

• Unplug USB before opening Developer Options if settings can't be accessed
• Enable USB Debug (Security Settings)

Environment Issues

"Hash license failed" Error

User-modified environment variables cause this. Fix:

1. Right-click My Computer > Properties > Advanced System Settings
2. Environment Variables
3. Change TMP and TEMP to %USERPROFILE%\AppData\Local\Temp

Intel E-Series CPU Warning

Intel E-Series processors lack integrated GPU and are significantly slower for TC. Use I-Series instead.

Graphics Card Issues

TC client interface misplacement or display errors:

• Update/replace graphics driver
• Try disabling current graphics card temporarily