Intel® Wireless-AC 9560 crash with kernel updates on Dell inspiron 15 7000 2-in-1

i use Ubuntu 20.04. Recently the kernel version got updated, Not sure because of that or not, the wifi was unstable for few days and now it is not working at all. it says no wifi adapter found.
this is what i see from dmesg. This is with kernel 5.4.0-91
[ 520.470502] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[ 520.470507] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[ 520.470509] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[ 520.470511] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[ 520.470513] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[ 520.470514] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[ 520.470516] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[ 520.470517] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[ 520.470519] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[ 520.470521] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[ 520.470522] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[ 520.470524] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[ 520.470525] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[ 520.470528] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM
[ 520.470530] iwlwifi 0000:00:14.3: Found debug configuration: 0
[ 520.471025] iwlwifi 0000:00:14.3: loaded firmware version 46.6bf1df06.0 9000-pu-b0-jf-b0-46.ucode op_mode iwlmvm
[ 520.480476] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560, REV=0x318
[ 520.520868] iwlwifi 0000:00:14.3: Microcode SW error detected. Restarting 0x0.
[ 520.520881] iwlwifi 0000:00:14.3: Not valid error log pointer 0x00000000 for Init uCode
[ 520.520905] iwlwifi 0000:00:14.3: Fseq Registers:
[ 520.520916] iwlwifi 0000:00:14.3: 0x1822BF3B | FSEQ_ERROR_CODE
[ 520.520928] iwlwifi 0000:00:14.3: 0x00000000 | FSEQ_TOP_INIT_VERSION
[ 520.520940] iwlwifi 0000:00:14.3: 0xF85AFFC0 | FSEQ_CNVIO_INIT_VERSION
[ 520.520951] iwlwifi 0000:00:14.3: 0x0000A384 | FSEQ_OTP_VERSION
[ 520.520963] iwlwifi 0000:00:14.3: 0x9102B8CB | FSEQ_TOP_CONTENT_VERSION
[ 520.520974] iwlwifi 0000:00:14.3: 0x232A9B8F | FSEQ_ALIVE_TOKEN
[ 520.520985] iwlwifi 0000:00:14.3: 0x320F6204 | FSEQ_CNVI_ID
[ 520.520996] iwlwifi 0000:00:14.3: 0xA3D1E534 | FSEQ_CNVR_ID
[ 520.521007] iwlwifi 0000:00:14.3: 0x01000100 | CNVI_AUX_MISC_CHIP
[ 520.521020] iwlwifi 0000:00:14.3: 0x01300202 | CNVR_AUX_MISC_CHIP
[ 520.521033] iwlwifi 0000:00:14.3: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM
[ 520.521077] iwlwifi 0000:00:14.3: 0xA5A5A5A2 | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR
[ 520.521185] iwlwifi 0000:00:14.3: SecBoot CPU1 Status: 0x3, CPU2 Status: 0x238e
[ 520.521194] iwlwifi 0000:00:14.3: Failed to start INIT ucode: -5
[ 520.533922] iwlwifi 0000:00:14.3: Failed to run INIT ucode: -5

Also tried updating to 5.15.5 kernel, 

Also updated BIOS and did reset BIOS to default.
And when i disabled Bluetooth in BIOS with the new kernel, i observed wifi was stable for around 4 minutes but it crashed later.
Attached the new dmesg logs.