For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Right i've replaced the ISL again with another new chip and it's now making PPBUS and starts! The machine does however have another issue - when I disconnect the charger and reconnect it then the light comes orange on the charger but it doesn't start to charge the battery. If I SMC reset the system then it will start charging the battery again until I reconnect the charger.