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iPhone 12 Pro Max has no signal fault maintenance.
Machine model: iPhone 12 Pro Max.
Malfunction phenomenon: iPhone 12 Pro Max has no signal.
Maintenance process:
iPhone 12 Pro Max has no signal. after separate, the upper layer pad break off was found. after adding useful points, welding tested Baseband for repair.
iPhone 12 Pro Max without signal fault maintenance figure 1.
iPhone 12 Pro Max without signal fault maintenance figure 2.
iPhone 12 Pro Max without signal fault maintenance figure 3.
iPhone 12 Pro Max without signal fault maintenance figure 4.
