Cannot Boot To Win10 In Grub

I have been using Manjaro KDE version for about half year, yesterday I needed to boot windows10 to use certain tool but failed.

Here's my laptop configuration: LG gram + 2 SSD (one is nvme 512GB installed with win10 and the other is sata 256GB installed with Manjaro).

Some disk info below:

~ >>> sudo fdisk -l                                                                                                                                                 
Disk /dev/nvme0n1: 465.76 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 970 EVO 500GB               
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 27B953FC-31EB-11E9-8552-F4DD9CE442AB

Device         Start       End   Sectors   Size Type
/dev/nvme0n1p1  2048     34815     32768    16M Microsoft reserved
/dev/nvme0n1p2 34816 976773119 976738304 465.7G Microsoft basic data


Disk /dev/sda: 238.47 GiB, 256060514304 bytes, 500118192 sectors
Disk model: HFS256G39TND-N21
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: A541C300-BAF2-5947-BDAB-9C1E62A9E90B

Device      Start       End   Sectors   Size Type
/dev/sda1    4096    618495    614400   300M EFI System
/dev/sda2  618496 500103449 499484954 238.2G Linux filesystem


Disk /dev/sdb: 28.64 GiB, 30752000000 bytes, 60062500 sectors
Disk model: Ultra USB 3.0   
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

Device     Boot   Start     End Sectors  Size Id Type
/dev/sdb1  *         64 6093039 6092976  2.9G  0 Empty
/dev/sdb2       6093040 6101231    8192    4M ef EFI (FAT-12/16/32)

~ >>> sudo lsblk -f                                                                                                                                                 
NAME        FSTYPE  FSVER            LABEL            UUID                                 FSAVAIL FSUSE% MOUNTPOINT
sda                                                                                                       
├─sda1      vfat    FAT32                             CB3A-0C04                             299.1M     0% /boot/efi
└─sda2      ext4    1.0                               742143b0-ffb4-41b5-9932-27381dbf1df5  123.5G    42% /
sdb         iso9660 Joliet Extension MANJARO_KDE_2003 2020-06-06-08-14-33-00                              
├─sdb1      iso9660 Joliet Extension MANJARO_KDE_2003 2020-06-06-08-14-33-00                     0   100% /run/media/gavin/MANJARO_KDE_2003
└─sdb2      vfat    FAT12            MISO_EFI         F327-8F27                                           
nvme0n1                                                                                                   
├─nvme0n1p1                                                                                               
└─nvme0n1p2 ntfs                                      DCD48F0BD48EE6DC                       85.4G    82% /run/media/gavin/DCD48F0BD48EE6DC

How can I fix the Windows10 boot entry in grub? I have tried os-prober and adding win10 entry in /etc/grub.d/40_custom but both failed. Below are the entries I tried but failed:

menuentry "Windows 10 -1" --class windows --class os {
   insmod ntfs
   search --no-floppy --set=root --fs-uuid DCD48F0BD48EE6DC
   ntldr /bootmgr
}

menuentry "Windows 10 -2" {  
     insmod ntfs
     set root='(hd0,1)'
     search --no-floppy --fs-uuid --set CB3A-0C04
     chainloader +1
}

menuentry "Windows 10 -3" {  
     insmod ntfs
     set root='(hd0,1)'
     search --no-floppy --fs-uuid --set DCD48F0BD48EE6DC
     chainloader +1
}

menuentry "Windows 10 -4" {  
     insmod ntfs
     set root='(hd1,1)'
     search --no-floppy --fs-uuid --set CB3A-0C04
     chainloader +1
}

menuentry "Windows 10 -5" {  
     insmod ntfs
     set root='(hd1,1)'
     search --no-floppy --fs-uuid --set DCD48F0BD48EE6DC
     chainloader +1
}

menuentry "Windows 10 -6" {  
     insmod ntfs
     set root='(nvme0,1)'
     search --no-floppy --fs-uuid --set CB3A-0C04
     chainloader +1
}

menuentry "Windows 10 -7" {  
     insmod ntfs
     set root='(nvme0,1)'
     search --no-floppy --fs-uuid --set DCD48F0BD48EE6DC
     chainloader +1
}

I really enjoy Linux and have solved several problems with help of Google/Reddit/StackExchange, but this one I really don't know how to solve.

I would appreciate it a lot if you can help because though I use Manjaro mainly I still need some win10 tools occasionally.