Apple is hit anew by additional three (3) law firms that have joined a class lawsuit over an alleged defect on iPhone 6 Plus touchscreens, in which, they have claimed become unresponsive.

Reports said that Apple failed to acknowledge and/or do free repairs on the so-called "touch disease." Apple Insider reported that those affected iPhones present a flickering gray band near the phone speaker. Users alleged that this was due to faulty controller chips, and/or their solder joints.

It could be remembered that in the month of August certain Thomas Davidson of Pennsylvania, Todd Cleary of California, and Jun Bai of Delaware filed a suit against Apple.

MacRumors reported that the complaint filed with the U.S. District Court for Northern California, alleged that Apple violated California's consumer fraud statutes, through fraud, negligent misrepresentation, breach of implied warranty, and unjust enrichment. In addition, the complaint also alleged that Apple violated the Magnuson-Moss Warranty Act and Song-Beverly Consumer Warranty Act.

The complaint said that Apple has been aware of the defective iPhones for a long time yet it refused to repair the iPhones  without charge when the defect manifests.

"Many other iPhone owners have communicated with Apple's employees and agents to request that Apple remedy and/or address the Touchscreen Defect and/or resultant damage at no expense. Apple has failed and/or refused to do so," the complaint read.

The complaint also stated that due to Apple's unfair, deceptive and/or fraudulent business practices, iPhone users, including the Plaintiffs, have suffered an ascertainable loss of money and/or property and/or value.

MacRumors also cited Motherboard's report that on Friday, McCune will be filing an updated lawsuit against Apple which will include a number of new plaintiffs and formally adds the three separate law firms to the legal battle. The same report said that McCune believes that the three additional law firms will help them obtain a positive result in the case.