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How to repair battery without EC in ssdt

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I use Surface Pro 7, cpu i7 1065G7
Currently trying to fix the battery problem, but EC is not found in dsdt. After creating a virtual EC using SSDTTime according to the OC official website, how to create a battery patch.
BAT can be searched in SSDT-1 (DptfTabl)
code show as below:
Scope (\_SB)
         Device (BAT1)
             Name (_HID, EisaId ("INT3532")) // _HID: Hardware ID
             Name (_UID, "BAT1") // _UID: Unique ID
             Name (_ADR, One) // _ADR: Address
             Name (_STR, Unicode ("Battery 1 Participant")) // _STR: Description String
             Name (PTYP, 0x0C)
             Name (_SUB, "MSHW0186") // _SUB: Subsystem ID
             Method (_STA, 0, NotSerialized) // _STA: Status
                 If ((\BATR == One))
                     Return (0x0F)

Hope someone can help me

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