The comparison chart for LAUNCH TPMS tools X431 TSGUN and CRT 511. Find the most suitable TPMS tool for your business.

TPMS Tool	X431 TSGUN	Launch CRT 511
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Price	184USD	315USD
Configuration
Display	1.77″/168*128	3.5″ / 320*480
OBDII Input Voltage		9-18V
Input Voltage	DC 5V	DC 5V
Battery	3000 mAh	3100 mAh
Dimension	252*54*30mm	200*115*35mm
Weight	<350g	<450g
Working Mode	Works with X431 scanner (X431 V, X431 V+, X431 Pro, X431 PAD V, X431 PAD VII  etc)	Stanalone
TPMS Functions
Activate all 315MHz or 433MHz TPMS sensors	Yes	Yes
Read tire pressure, temperature & battery status	Yes	Yes
Read /clear TPMS DTCs	Yes	Yes
Turn on and off TPMS MIL	No	Yes
Read TPMS sensor ID	Yes	Yes
Copy original TPMS Sensor ID	Yes	Yes
Manual input TPMS Sensor ID	Yes	Yes
Automatic generate new TPMS sensor ID	Yes	Yes
Reprogram Launch Sensor unlimited times	Yes	Yes
Batch programming Launch Sensors	No	Yes (Up to 8 sensors)
3 relearn methods (stationary relearn / automatic relearn/ OBDII relearn)	Yes	Yes
Relearn procedure guide	Yes	Yes
Other Functions
Full OBDII / EOBD functions	No	Yes
Launch sensor detection	No	Yes
Key FOB reader	No	Yes

If you are interested in LAUNCH X431 TSGUN TPMS WAND Car Tire Pressure Monitoring Tool, the below link subscribe all the details, for Launch CRT 511, they are not available yet.

Today we’re going to bring you a review of OBDSTAR X300 Pro4 and Xtool X100 PAD3.

Generally, they have similar price less than 1,000$, and they can do key programming for 80-85% budget cars. (Not good for Benz, BMW…)You may need it after you’ve worked on initial programming with like Kess for a while and customers start to ask key programming for you.

The Xtool has free update for 2 years, while the OBDSTAR is one year.
The Xtool has more diagnostic functions, and there is a car diagnostic menu, much more powerful.

For others they are similar, EEPROM, IMMO… menus are separate on PRO4.

RU cars
Can they program Renault Lada Vesta? These platforms are based on continental blocks. The two scanners basically read them for diagnosis, but Xtool PAD3 sometimes cannot make my Lada when I lost all keys, although when adding it makes them. X300 PRO4 never has this problem. It’s able to read FLASH and add keys, but it happens that it cannot read it when all keys lost.

US cars
I have a Grand Cherokee 2006, but I couldn’t read it on PRO4, and the pin code is a trouble. I have done more than ten Cherokee and never had any question with this.

Toyota smart key
Both fine, even Camry 2021 adds right. They all have simulators for all keys lost, read data and write it to the simulator and the car comes. But, for Aqua 2014, the Xtool reads EEPROM without problems, but I couldn’t write down the PH94 type.

Benz
If you have to do Mercedes-Benz, the Xtool doesn’t know how to do them fully but can add key for young Benz if you get a KC501 Key Programmer. Xtool goes further, and they add more professional cars. That is what I don’t smell on this OBDSTAR.

Summary
Better to take another device because it’ll be more professional, Xhorse, MB tools…If I have the PRO4, I would never learn BMW and Mercedes, and never restore keys fully to Toyota smart key.
Of course, there are more advantages for this Xtool because diagnosis is strong, 2 years warranty, 2 years free updates. If you want to make a Mercedes or BMW with budget, you can still consider Xtool.

More tools you get, more confident you will be.

2021 new Autel MaxiSys Elite II now is available on Obd2.ltd.

Autel MaxiSys Elite vs Autel MaxiSys Elite II vs MaxiSys MS909

Hardware Comparison:

Item	Autel Maxisys Elite	Autel MaxiSys Elite II	Maxisys MS909
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CPU	Nvidia T40S (4*A15 1.8G)	Samsung Exynos8895 8 Core ( 4*M2 2.3G + 4*A53 1.7G)	Samsung Exynos88958 Core ( 4*M2 2.3G + 4*A53 1.7G)
EMMC	32GB/64GB	/64GB	/64GB
DDR	2GB	4GB	4GB
Android System	Android4.4	Android 7.0	Android 7.0
LCD	9.7 inch 2048*1536	9.7 inch 2048*1536	9.7 inch BOE 1536×2048
Battery	15400mAH	15400mAH ( Elite)	15000mah
Power	(9V, 2A) / (12V, 3A)	(12V, 3A)	(12V, 3A)
TP	10	10	5
Front camera	2M	5M	5M
Rear camera	8M	16M	16M
Microphone connector	1Mic	1Mic (Elite)	1Mic
WiFi module	wifi5	wifi5	Dual wifi5
Docking station	Yes	Yes	No
GPS	No	Yes	Yes
Battery tester	No	Optional BT506	Optional BT506
VCI	MaxiFlash Elite	MaxiFlash Elite	MaxiFlash VCI

1 what is Freeze Frame Data?

Freeze Frame Data like an airplane’s black box, whenever the computer detects a fault when an issue happens it will stores freeze frame data related to the issue. It is so important for diagnosing faults that it is never deleted or overwritten. It tells you how the other parameters or components were performing when the ECU stored the fault code. When the engine computer (PCM) detects a fault and turns the Check Engine light on, it also stores a freeze frame related to that fault. We use the word ‘freeze’ because this data is saved and frozen the moment.You can view this information to find the cause of the problem. The freeze frame data will remain in the obd2 until the code is repaired and cleared.

How Can You Access a Freeze Frame?

You will need a obd2 scan tool to access the freeze frame data. Connect to the obd2 port under dashboard. Different scanner will have different menu,  there are a lot of options for you to choose from such as reading codes, erase codes, data streams. You can find there the freeze frame or freeze frame data.

You will need an obd2 compliant scanner to read and clear the data.

Manufacturer-authorized mechanics have manufacturer-specific scanners that resemble laptop PC that will display everything the computer records.

2 How to read Freeze Frame Date?

Below we list this chart so you can read and interpret your freeze frame data quickly.

Difference between Freeze Frame Data and Live Data

Freeze Frame Data compared with live data the advantage is that you do not need to watch on the scanner when you drive. You can do your own thing the data will be still stored for you and you can check them whenever you want to.  Also the data is saved at different intervals you do not need to do any manual work. It will be easier when you take your vehicle to a mechanic you can print out of the data and share with an expert who know how to interpet the information or you can find the information online and helps you solve the problem.

Live date is very useful too. It can tells you the condition of your vehicle at any given moment and help you quickly identify where the problem be.

How to clear Freeze Frame Data Using an OBD2 Scan Tool? 

You can use OBD tool to reset and clear the Freeze Frame. Freeze Frame is removed when you reset the MIL and clear the OBD2 trouble codes. It’s an all-in-one action that resets all the diagnostics data in the car. However, the trouble codes and other data will come back if the problem detected again.