- Nov 12, 2012
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I am at my wits end right now dealing with cheap Chinese knock off digitizers. In the hopes of keeping my fellow Lumia 820 users away from the pain and suffering that I have thus far experienced, I am going to compile a list here of suppliers who have sold me non OEM digitizers.
As a reminder, true OEM Nokia digitizers possess a linear polarization layer and a quarter wave retardation layer on the underside of the digitizer to support their "clearblack" technology. this is present as a thick film on the reverse side of the digitizer when removed. In addition, a true OEM digitizer has a different detection grid that supports Nokia's "Super Sensitive Touch" It is this grid that allows the Lumia 820 to be used with gloves on when the touch sensitivity is high. The fake digitizers are basically cobbled together with low-grade generic digitizers combined with low grade materials. If you install one of the fake digitizers on a Lumia 820, the digitizer will begin to register phantom touches and glitch out in a matter of hours. These symptoms seem to be more pronounced with the Lumia Amber update.
Suppliers that have sold me fake digitizers:
eBay: pmonmon, rongyuanxie, iparts-us
Every low-cost supplier on aliexpress and alibaba (These names fluctuate everyday)
I will update this list as I purchase more (I have at least a dozen phones that I am repairing at any given time and most of them are Lumia 820's). As soon as I can find a supplier that sells good digitizers, I will list that as well. If anybody has had similar experiences, feel free to let me know and I will update the list.
As a reminder, true OEM Nokia digitizers possess a linear polarization layer and a quarter wave retardation layer on the underside of the digitizer to support their "clearblack" technology. this is present as a thick film on the reverse side of the digitizer when removed. In addition, a true OEM digitizer has a different detection grid that supports Nokia's "Super Sensitive Touch" It is this grid that allows the Lumia 820 to be used with gloves on when the touch sensitivity is high. The fake digitizers are basically cobbled together with low-grade generic digitizers combined with low grade materials. If you install one of the fake digitizers on a Lumia 820, the digitizer will begin to register phantom touches and glitch out in a matter of hours. These symptoms seem to be more pronounced with the Lumia Amber update.
Suppliers that have sold me fake digitizers:
eBay: pmonmon, rongyuanxie, iparts-us
Every low-cost supplier on aliexpress and alibaba (These names fluctuate everyday)
I will update this list as I purchase more (I have at least a dozen phones that I am repairing at any given time and most of them are Lumia 820's). As soon as I can find a supplier that sells good digitizers, I will list that as well. If anybody has had similar experiences, feel free to let me know and I will update the list.