This is a service manual for NOKIA 5310 Xpress Music RM-303/RM-304 phones
This Service Manual Level 1&2 is intended for qualified service technicians to diagnose, repair, and maintain the Nokia 5310 Xpress Music handset. It includes warnings, ESD protection guidelines, care and maintenance advice, and detailed battery handling instructions.
The manual provides exploded views, part numbers, solder‑level components, and a list of required service tools. It also contains step‑by‑step disassembly and assembly procedures, torque specifications, and notes on handling the device in sensitive environments such as vehicles or explosive atmospheres.