iPhone LCD Tester Device Machine to Quickly Identifying Screen Defects

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iPhone LCD Screen Tester Machine Box

Testing your iPhone LCD screens without the proper device is too time consuming and often times gets neglected when repair store owners purchase wholesale LCD screens for their shops. Every iPhone repair shop should have one of these iPhone tester machines in their store.

This device doesn’t have a brand name and comes straight out of China. There is an English and Chinese version. The first one I bought was actually Chinese but only took a little tinkering without instructions to get going. It’s not a very complicated device.

iPhone LCD Tester Compatible List:

This specific iPhone testing device will test iPhone 4 and iPhone 4s LCD screens. It doesn’t matter if it’s CDMA or GSM. It will not test iPhone 5 LCD screens.

The iPhone LCD Tester Kit Comes with the Following Items:

Main Testing Box
Battery
Replaceable Flex Connector Circuit Board
AC Wall Adapter

With the flex connector circuit board snapped onto the front of the testing box and the battery and AC adapter in place, you’re ready to get testing.

One thing that’s odd is the battery slides in the testing box but does not lock itself in place. It seems the battery is more of a circuit connection switch than an actually battery itself. The device will not run on the wall charger alone, so make sure not to misplace the battery. It looks like a blue blackberry battery and we misplaced our first one within a couple of days. I’m pretty sure it ended up in the scrap battery box and was sold to our battery recycler.

I’ll highlight a few reasons why you should pick one of these up ASAP.

Initial Quality Control – In every batch of wholesale LCD screens that you purchase, there are bound to be some defects missed by the manufacturer, distributor and in the shipping process. Even if it’s under 5%, you’re able to quickly get together an RMA to your vendor days or weeks faster. With the volatility of some of the higher end screens, it’s important to sift through any defects quickly and return them before the value is lowered.
Hooking up LCD to iPhone LCD Tester Device – Connecting the LCD and digitizer flex is much easier than on a mainboard because there are no other parts that get in the way.
No Mainboard Needed – You do not need an iPhone 4 or 4s mainboard to test. The connections on the mainboard are not designed to be connected and reconnected hundreds of times. They will eventually go bad and, unless you know how to solder or re-flow, you’ll end up with a worthless paperweight. With this device, when the connection contacts wear out, you replace just that one part for about $15-$20.
Quality of Test – Once you’ve connected and started the process, the first thing that appears on the screen is a high resolution image. Spotting fake iPhone screens is pretty easy. Then a button is pushed and it runs through ROY G BIV colors so you’re able to spot any dead pixels, discoloration, screen burns or watermark spots. If the digitizer has some bad spots, it can and will tell you. The digitizer test is not perfect, but it does a fairly good job. Also, if it detects any grey lines or dead spot areas, the test will stop and prompt the user to continue through the test.
Speed of Test – Our technician, Kirk, is truly a one man machine. Using two devices at the same time, he’s able to test about 1,500 LCDs a day. If challenged, he could do many more. There is no wait time for the device to boot up in between screen tests and the programming automates a lot of the process. It’s made for speed. The average time for an everyday tester I would estimate to be at no more than 15-20 seconds per screen – including hookup, test and disconnection.
Use of Flex Extenders – Many repair stores use a flex extender with an iPhone board to conduct their test. It reduces the number of connections to the mainboard and gives you more flexibility when connecting and testing the LCD screen. With this device, you can use the same flex extenders to prolong the use of the replaceable chip. These run for about $5 to $8 each.

iPhone Flex Cable Extender Cable

7. Save time when repairing – It’s not fun when you’ve taken the time to disassemble and replace a broken iPhone LCD only to find out that the LCD has some defect after reassembly. You’ll eliminate this headache once and for all.

Each replaceable connection chip lasts about 250-750 connections. Your mileage may vary depending on how gentle your technician is. The flex extender is good for about 500-1000+ LCDs. The total average cost to test each screen comes in at under 5 cents per screen. Money well spent to get all the benefits mentioned above.

The iPhone LCD Tester Device runs about $250 per kit. Because so many clients have expressed their interest, we’ve been purchasing them in bulk from Asia and have them available for sale. For the same $250 elsewhere, we include a few replacement chips and flex extenders. Our markup is only to cover our expenses and postage in hopes that you’ll bite and see the benefit.

If you’re interested, contact your sales rep or e-mail us and we’ll get one out to you.

Lastly, you would be surprised that many clients who started using this iPhone LCD Tester started to see defects on screens they would otherwise pass up when replacing; this has helped them to reduce customer returns and keep their iPhone screen suppliers in check.