Please help me to correct these sentences.

Please take a look at the sentences below and advise if they are grammatically correct.

We have already regenerated the units as described in the user manuals provided. After regeneration, we found that the two units were only showed / displayed above 99%. We have readjusted the units after compared them with another well-set unit.

All units have been regenerated as described in the user manuals provided. After regeneration, we found the reading above 90% only in two units out of five regenerated. We have readjusted the units after comparison with another well-set unit.

Thank you for your kind help on this.