diff --git a/rootdir/etc/fstab.qcom b/rootdir/etc/fstab.qcom
index 66fa0070..b0d51026 100644
--- a/rootdir/etc/fstab.qcom
+++ b/rootdir/etc/fstab.qcom
@@ -11,7 +11,7 @@
 
 # Non-A/B fstab.qcom variant
 #<src>                                                              <mnt_point>             <type>  <mnt_flags and options>                                                                             <fs_mgr_flags>
-/dev/block/zram0                                                    none                    swap    defaults                                                                                            zramsize=50%
+/dev/block/zram0                                                    none                    swap    defaults                                                                                            zramsize=50%,zram_backingdev_size=512M
 /dev/block/bootdevice/by-name/userdata                              /data                   ext4    nodev,nosuid,barrier=1,noauto_da_alloc,discard,lazytime                                             wait,check,fileencryption=ice,quota,reservedsize=128M,fsverity
 /dev/block/bootdevice/by-name/userdata                              /data                   f2fs    nodev,nosuid,fsync_mode=nobarrier,lazytime,background_gc=sync,gc_merge,atgc,checkpoint_merge        wait,check,fileencryption=ice,quota,reservedsize=128M,fsverity
 /dev/block/bootdevice/by-name/misc                                  /misc                   emmc    defaults                                                                                            defaults
diff --git a/rootdir/etc/fstab_A.qcom b/rootdir/etc/fstab_A.qcom
index cf796851..e9febeef 100644
--- a/rootdir/etc/fstab_A.qcom
+++ b/rootdir/etc/fstab_A.qcom
@@ -10,7 +10,7 @@
 
 # Non-A/B fstab.qcom variant
 #<src>                                                              <mnt_point>            <type>  <mnt_flags and options>                                                                           <fs_mgr_flags>
-/dev/block/zram0                                                    none                   swap    defaults                                                                                          zramsize=50%
+/dev/block/zram0                                                    none                   swap    defaults                                                                                          zramsize=50%,zram_backingdev_size=512M
 /dev/block/bootdevice/by-name/system                                /                      ext4    ro,barrier=1,discard                                                                              wait,avb
 /dev/block/bootdevice/by-name/userdata                              /data                  ext4    nosuid,nodev,barrier=1,discard,noauto_da_alloc,lazytime                                           wait,check,formattable,fileencryption=ice,quota,reservedsize=128M,fsverity
 /dev/block/bootdevice/by-name/userdata                              /data                  f2fs    nosuid,nodev,fsync_mode=nobarrier,lazytime,background_gc=sync,gc_merge,atgc,checkpoint_merge      wait,check,formattable,fileencryption=ice,quota,reservedsize=128M,fsverity
diff --git a/rootdir/etc/fstab_AB.qcom b/rootdir/etc/fstab_AB.qcom
index f963c911..b676e6ee 100644
--- a/rootdir/etc/fstab_AB.qcom
+++ b/rootdir/etc/fstab_AB.qcom
@@ -7,7 +7,7 @@
 
 # A/B fstab.qcom variant
 #<src>                                                              <mnt_point>           <type>  <mnt_flags and options>                                                                         <fs_mgr_flags>
-/dev/block/zram0                                                    none                  swap    defaults                                                                                        zramsize=50%
+/dev/block/zram0                                                    none                  swap    defaults                                                                                        zramsize=50%,zram_backingdev_size=512M
 /dev/block/bootdevice/by-name/system                                /                     ext4    ro,barrier=1,discard                                                                            wait,slotselect
 /dev/block/bootdevice/by-name/userdata                              /data                 ext4    nodev,nosuid,barrier=1,noauto_da_alloc,discard,lazytime                                         wait,check,encryptable=footer,quota,formattable,length=-16384,fsverity
 /dev/block/bootdevice/by-name/userdata                              /data                 f2fs    nodev,nosuid,inline_xattr,reserve_root=32768,resgid=1065,lazytime,background_gc=sync,gc_merge,atgc,checkpoint_merge              wait,check,encryptable=footer,quota,formattable,length=-16384,fsverity
diff --git a/rro_overlay/FrameworksOverlay/res/values/config.xml b/rro_overlay/FrameworksOverlay/res/values/config.xml
index 402e3ed3..2e375bd9 100644
--- a/rro_overlay/FrameworksOverlay/res/values/config.xml
+++ b/rro_overlay/FrameworksOverlay/res/values/config.xml
@@ -917,6 +917,9 @@
     <!-- Controls whether system buttons use all caps for text -->
     <bool name="config_buttonTextAllCaps">false</bool>
 
+    <!-- Enable Zram writeback feature to allow unused pages in zram be written to flash. -->
+    <bool name="config_zramWriteback">true</bool>
+
     <!-- Flag indicating whether we should enable the adaptive sleep.-->
     <bool name="config_adaptive_sleep_available">true</bool>