Unable to reinstall from USB, stuck at "GRUB _"

Hello all,

I previously used the Manjaro Architect to install just CLI Manjaro on my x220. I used DWM on top of this

Now, when using a USB to install Manjaro with XFCE, the laptop get’s stuck with the prompt “GRUB _” without the ability to type anything. I have tried switching the startup from UEFI to Legacy without any luck. The same USB works fine on my desktop when trying to install Manjaro XFCE. I have also checked the boot order to make sure the laptop boots from the USB before the SSD

I’m trying to understand what Grub is doing and why it’s loading when I’m just trying to boot from a USB?

reboot on USB iso manjaro
open a terminal and browser on this topic
and returns

inxi -Fza
sudo parted -l
sudo efibootmgr -v
test -d /sys/firmware/efi && echo efi || echo bios
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Sorry, I assume you wanted the output of those commands?

System:    Kernel: 4.19.141-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0 
           parameters: BOOT_IMAGE=/boot/vmlinuz-4.19-x86_64 root=UUID=f77d0d89-1b82-429d-8186-74515d4d7b23 rw quiet 
           Desktop: dwm 6.2 dm: startx Distro: Manjaro Linux 
Machine:   Type: Laptop System: LENOVO product: 4287CTO v: ThinkPad X220 serial: <filter> Chassis: type: 10 serial: <filter> 
           Mobo: LENOVO model: 4287CTO serial: <filter> UEFI [Legacy]: LENOVO v: 8DET73WW (1.43 ) date: 10/12/2016 
Battery:   ID-1: BAT0 charge: 6.8 Wh condition: 40.7/57.7 Wh (70%) volts: 11.0/11.1 model: LGC 42T4865 type: Li-ion 
           serial: <filter> status: Discharging 
CPU:       Topology: Dual Core model: Intel Core i7-2640M bits: 64 type: MT MCP arch: Sandy Bridge family: 6 model-id: 2A (42) 
           stepping: 7 microcode: 2F L2 cache: 4096 KiB 
           flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 22326 
           Speed: 797 MHz min/max: 800/3500 MHz Core speeds (MHz): 1: 797 2: 797 3: 797 4: 797 
           Vulnerabilities: Type: itlb_multihit status: KVM: Vulnerable 
           Type: l1tf mitigation: PTE Inversion 
           Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
           Type: meltdown mitigation: PTI 
           Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl and seccomp 
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization 
           Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, IBRS_FW, STIBP: conditional, RSB filling 
           Type: srbds status: Not affected 
           Type: tsx_async_abort status: Not affected 
Graphics:  Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics vendor: Lenovo driver: i915 v: kernel 
           bus ID: 00:02.0 chip ID: 8086:0126 
           Device-2: Chicony Integrated Camera [ThinkPad] type: USB driver: uvcvideo bus ID: 1-1.6:5 chip ID: 04f2:b2ea 
           Display: server: X.Org 1.20.8 driver: modesetting alternate: fbdev,intel,vesa display ID: :0 screens: 1 
           Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0") s-diag: 414mm (16.3") 
           Monitor-1: LVDS-1 res: 1366x768 hz: 60 dpi: 125 size: 277x156mm (10.9x6.1") diag: 318mm (12.5") 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 3000 (SNB GT2) v: 3.3 Mesa 20.1.6 compat-v: 3.0 direct render: Yes 
Audio:     Device-1: Intel 6 Series/C200 Series Family High Definition Audio vendor: Lenovo driver: snd_hda_intel v: kernel 
           bus ID: 00:1b.0 chip ID: 8086:1c20 
           Sound Server: ALSA v: k4.19.141-2-MANJARO 
Network:   Device-1: Intel 82579LM Gigabit Network vendor: Lenovo ThinkPad T520 driver: e1000e v: 3.2.6-k port: 5080 
           bus ID: 00:19.0 chip ID: 8086:1502 
           IF: enp0s25 state: down mac: <filter> 
           Device-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi v: kernel port: efa0 bus ID: 03:00.0 
           chip ID: 8086:0085 
           IF: wlp3s0 state: up mac: <filter> 
Drives:    Local Storage: total: 232.89 GiB used: 48.71 GiB (20.9%) 
           SMART Message: Required tool smartctl not installed. Check --recommends 
           ID-1: /dev/sda vendor: Crucial model: CT250MX500SSD1 size: 232.89 GiB block size: physical: 4096 B logical: 512 B 
           speed: 6.0 Gb/s serial: <filter> rev: 023 scheme: MBR 
Partition: ID-1: / raw size: 232.38 GiB size: 227.74 GiB (98.00%) used: 48.71 GiB (21.4%) fs: ext4 dev: /dev/sda2 
Swap:      Alert: No Swap data was found. 
Sensors:   System Temperatures: cpu: 44.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 1988 
Info:      Processes: 136 Uptime: 5m Memory: 15.45 GiB used: 761.2 MiB (4.8%) Init: systemd v: 246 Compilers: gcc: 10.2.0 
           Packages: pacman: 1027 lib: 240 Shell: Zsh v: 5.8 running in: st inxi: 3.1.05 
Model: ATA CT250MX500SSD1 (scsi)
Disk /dev/sda: 250GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos
Disk Flags: 

Number  Start   End    Size   Type     File system  Flags
 1      1049kB  538MB  537MB  primary               boot
 2      538MB   250GB  250GB  primary  ext4


with USB iso manjaro
open a terminal

sudo manjaro-chroot -a ( type 1 if only one line 0 appears )
grub-install --recheck --verbose /dev/sda
exit ( quit chroot )

reboot and press F2 or F8 or F12 for bios
and select manjaro boot

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