DL400 Pro LCD screen tester for iPhone 6-14 Plus, iWatch, Samsung, Huawei, Vivo, Xiaomi, Oppo Display LCD 3D/touch test, screen true tone repair, ect. DL400 Pro screen tester programmer test display/touch/3D, test current and voltage, original color recovery(true tone repair). iTestBox DL S300 Screen Tester has been discontinued. 

Product introduction:
1. Highlight product features.
Accurate and comprehensive test, small and beautiful appearance,the professional and stable system, friendly user experience, lasting battery, convenient system software update professional after-sales.
2. Product main functions.
For iPhone/iWatch/Samsung/Huawei/Vivo/Xiaomi/Oppo Display LCD 3D/touch test, screen true tone repair, ect.
3. 23pcs flex cables for iPhone 6-14 Plus(not including iPhone 13 Pro/13 Pro Max/14 Pro/14 Pro Max).

More models will be supported in the future;

Show multiple photos(system pre-installed common photos and user loaded four photos) for accurate and comprehensive display tests, the user can configure the photos easily.

Two touch test modes: simple touch and touch track show, user configs background 3D Touch function test, support displays which have 3D Touch.

Display brightness adjustment.

the user adjusts the display brightness using keys.

Show current of the tested display on the small screen, show the power consumption
Support test TP separately, the track is shown on the small screen of the TestBox.
Recover functions of the original color show and display brightness adjustment according to environment lightness.
Support multiple IOS versions, test the display compatibility using different IOS(Only for iPhone displays).
get the latest software from the official website and update it easily
4700mAh battery and fast charge.

Keys introduction:

ON/OFF KEY
Long press for system on or off operation; click for display on or off
operation after boot up
UP KEY
Click for photo paged up and long press for enabling all photos showed
function
DOWN KEY
Click for photo paged down and long press for enabling current photo not
showed function
BRIGHTEST KEY
Click for the brightest state
BRIGHT KEY
Click for loop switching birghtness;
MODE KEY
Touch test state:
click for swithing IOS version,
long press for switching simple mode and touch track mode;
display show test state:
long press to turn on or off low-speed-data-show mode(For 6-8P iPhone
displays only)
RECOVER KEY
Touch test state: click for clearing touch track;
Display off state: long press used to read origin color data from display,
click used to burn origin color data to display
ON/OFF+BRIGHT KEYS
When TestBox is off state, long pressed these two keys together, let
system enter into system update process
When TestBox is connected with a computer, long pressed these two
keys together to let the TestBox showed in the computer as a USB disk
ON/OFF+DOWN KEYS
click at the same time, force system shut down; after system shut down
long press ON/OFF key will let system boot up
MODE+BRIGHT KEYS
Long press together to switch test mode

S300 has three modes as below:

Touch+Display
TP only
Fog
MODE+BRIGHTEST KEYS
Long press together to switch language between Chinese and English

About battery charge

Support fast charge;
Please use the officially provided adapter and data line for safe;
Please connect data line to TYPE-C interface for charging operation;a battery icon on the small screen shows the status of charging;
Test Box can still be used when charging;