Read SN (barcode) in NVRAM

In Custom_nvram_lid.h, find the value corresponding to the ID that needs to be read

Implement Nvramagent

Import Java.lang.string;import android.os.remoteexception;import android.os.ibinder;import android.os.IInterface; Import Android.os.binder;import Android.os.parcel;public interface nvramagent extends android.os.iinterface{/** Local -side IPC implementation stub class. */public static abstract class Stub extends Android.os.Binder implements Nvramagent {private static final J        Ava.lang.String descriptor = "Nvramagent"; /** Construct The stub at attach it to the interface.        */Public Stub () {this.attachinterface (this, descriptor);         }/** * Cast an IBinder object to an Nvramagent interface, * Generating a proxy if needed.                */public static nvramagent asinterface (Android.os.IBinder obj) {if ((Obj==null)) {            return null;            } android.os.IInterface iin = (android.os.IInterface) obj.querylocalinterface (descriptor); if ((Iin!=null) && (Iin instanceof Nvramagent)) {return (nvramagent) iin);        } return new NvRAMAgent.Stub.Proxy (obj);        } public Android.os.IBinder Asbinder () {return this; } public boolean ontransact (int code, ANDROID.OS.PARCEL data, android.os.Parcel reply, int flags) throws Android.os .                     remoteexception {switch (code) {case Interface_transaction: {                    Reply.writestring (descriptor);                return true;                    } case Transaction_readfile: {data.enforceinterface (descriptor);                    int _arg0;                    _arg0 = Data.readint ();                    byte[] _result = This.readfile (_arg0);                    Reply.writenoexception ();                    Reply.writebytearray (_result);                return true; } Case Transaction_writefiLE: {data.enforceinterface (descriptor);                    int _arg0;                    _arg0 = Data.readint ();                    Byte[] _ARG1;                    _ARG1 = Data.createbytearray ();                    int _result = This.writefile (_arg0, _ARG1);                    Reply.writenoexception ();                    Reply.writeint (_result);                return true;                } default: {break;        }} return Super.ontransact (code, data, reply, flags);            } private static Class Proxy implements Nvramagent {private Android.os.IBinder mremote;            Proxy (Android.os.IBinder remote) {mremote = remote;            } public Android.os.IBinder Asbinder () {return mremote;       } public java.lang.String Getinterfacedescriptor () {         return descriptor; } public byte[] readFile (int file_lid) throws Android.os.RemoteException {Android.os .                Parcel _data = Android.os.Parcel.obtain ();                Android.os.Parcel _reply = Android.os.Parcel.obtain ();                Byte[] _result;                    try {_data.writeinterfacetoken (descriptor);                    _data.writeint (File_lid);                    Mremote.transact (Stub.transaction_readfile, _data, _reply, 0);                    _reply.readexception ();                _result = _reply.createbytearray ();                    } finally {_reply.recycle ();                _data.recycle ();            } return _result;                } public int WriteFile (int file_lid, byte[] buff) throws Android.os.RemoteException {                Android.os.Parcel _data = Android.os.Parcel.obtain (); Android.os.Parcel _reply = Android.os.Parcel.obtain ();                int _result;                    try {_data.writeinterfacetoken (descriptor);                    _data.writeint (File_lid);                    _data.writebytearray (Buff);                    Mremote.transact (Stub.transaction_writefile, _data, _reply, 0);                    _reply.readexception ();                _result = _reply.readint ();                    } finally {_reply.recycle ();                _data.recycle ();            } return _result;        }} static final int transaction_readfile = (ibinder.first_call_transaction + 0);    static final int transaction_writefile = (ibinder.first_call_transaction + 1);    } public byte[] readFile (int file_lid) throws android.os.RemoteException; public int WriteFile (int file_lid, byte[] buff) throws android.os.RemoteException;}

The following is an example of reading SN in NVRAM (SN and IMEI together, ID in mt6582 is ap_cfg_reeb_product_info_lid)

IBinder Binder = Servicemanager.getservice ("nvramagent");

Nvramagent Agent = NvRAMAgent.Stub.asInterface (binder);

byte[] buff = null;

try {

Buff = Agent.readfile (+);//Ap_cfg_reeb_product_info_lid

} catch (Exception ee) {ee.printstacktrace (); }

Read SN (barcode) in NVRAM