Don't waste time on iphone glass only repairs cost savings is only a few bucks. on galaxy phones have at it. Explain to your customer the glass only repair is a small gamble to save allot of money. But that you will not say that you can do it with 100% certainty and that they may have to go with the full lcd in the end. Do not lie to them tell them how many repairs you did this way and how many of those required the lcd in the end. The customer will always take the risk and accept the potential for full assembly replacement 99% of the time any how. Truth is and i do not care how many repair techs say other wise no one can do glass only repairs with zero failures. To many variables in how good the glue job is under the lcd. A void under the lcd in the wrong place will result in a busted lcd with no fault on the part of the tech. I had a s4 going smooth as silk got half way done and lcd broke about 3/4 the way down do to a void in the glue behind the lcd. Yeh the customer was upset but understood that there was no way to predict this or prevent it. Had a s3 fail removing the very last shard of glass that it seems held the lcd together or the ribbon or something regardless the phones lcd died. I do these repairs with the phone turned on and fully assembled.